Marty O'Donnell is one of the best composers out there. Every Halo game has totally different music from the others and they ALL rock! Especially Halo 2!!!! Reach should be no different

Koichi Sugiyama - Most famous for the music in the Dragon Quest Series.  Also has done many works in the Anime and Live Action scene over the course of the last 50 years.  One of the most influential artist in the way of bringing orchestrated music to the gaming scene and is known to have influenced many current composers.

Koji Kondo - Most famous for his works in the Mario and Zelda series.  His credentials stretch much farther as both a producer of music and an overseer of new talent.

Yasunori Mitsuda - Most famous for his works on the Chrono and Xeno series.  He has branched out to works in other fields and has been seen less and less in the gaming scene, though he does appear from time to time to make a new OST for a game here and there.

Yoko Shimomura - While not perticulalry famous in and of herself, this artist has done the music for many of peoples favorite games.  From Street Fighter II to Legend of Mana to Super Mario RPG to Kingdom Hearts.  Her resume is just as impressive as any other of her male counterparts.  And in all honesty, more impressive than most.

Kenji Yamamoto - While most famous for doing the music for the Metroid series, this is actually one of Nintendos oldest and most reveared composers which has been with them since the early NES days.  Lke Koji Kondo, he plays a dual role of writing scores and overseeing new talent.

Jun Ishikawa - Theres some artists out there that only become famous for doing one type of music or for one series.  And this artists is one of those.  For the most part, this cmposer has stuck pretty consistently to the Kirby series, but that's okay.  Because his unique music style fits to that series perfectly.  And most importantly, its really good.

Hitoshi Sakimoto & Masaharu Iwata - Its hard to tell where this duo of composers controbutions begins and ends.  But what its known is, they quite often work together, and a lot of their works come out quite good.  Their most famous works include such soundtracks as Final Fantasy XII, Final Fantasy Tactics and the Ogre Battle series.  However, the list does not stop there.  Their pairing seems to be a benifitial one, as it has produced many more OSTs following the success of Final Fantasy XII, including projects for such companies as VanillaWare and Konami.

You know g-value, I'll get into a down and dirty music fight with your FFXIII music and my KH music.

@ dtewi

It won't even be a fight, it would be a rape session. KH's music is nothing compared to FFXIII's music.

Motoi Sakuraba
Progressive Battle 1988 (Dèja Vu, live compilation) 1988
Baroque in the Future (Dèja Vu) 1988
Pazzo Fanfano di Musica (progressive rock compilation; various artists) 1988
Arcus II: Silent Symphony 1989
King's Boards (progressive rock compilation; various artists) 1990
FZ Series "AXIS" 1990
Maneuver Cepter Granada 1990
Zan Kagerou no Toki 1990
Gikyokuonsou (solo work) 1991
Beyond the Beyond Original Game Soundtrack 1996
@Midi's Summer (as a guest) 1996
Star Ocean Perfect Sound Collection 1996
Shining the Holy Ark Original Soundtrack 1996
Cyber Bi-Shoujo Telomere Original Soundtrack 1998
@Midi's Dance (as a guest) 1998
Star Ocean The Second Story Original Soundtrack 1998
Star Ocean The Second Story Arrange Album 1998
Force of Light 1998
Shining Force III Original Soundtrack 1998
Tales of Phantasia Original Soundtrack Complete Version 1999
@Midi's Battle (as a guest) 1999
Vanny Knights Original Soundtrack 1999
Valkyrie Profile Original Soundtrack 2000
Valkyrie Profile Arrange Album 2000
Tales of Destiny Soundtrack 2000
Valkyrie Profile Voice Mix Arrange 2000
Star Ocean The Second Story Fantasy Megamix (arranged by Yoshihiro Ike) 2000
Genso-maden Saiyuki Original Soundtrack Volume 1 2000
Mario Tennis 64 Original Soundtrack 2000
@Midi's Freedom (as a guest) 2000
Melody of Legend: Chapter of Dream (arrange compilation; one track featured) 2001
Melody of Legend: Chapter of Love (arrange compilation; one track featured) 2001
Shin Megami Tensei: Devil Children Game Music Arrange Tracks 2001
Genso-maden Saiyuki Original Soundtrack Volume 2 2001
Tales of Eternia Original Soundtrack 2001
Tales of Eternia "The Animation" Original Soundtrack 2001
Tales of Eternia Remaster Audio 2001
Star Ocean EX Original Soundtrack Volume 1 2001
Star Ocean: Blue Sphere Arrange & Sound Trax 2001
Star Ocean EX Original Soundtrack Volume 2 2001
Tales of Destiny 2 Original Soundtrack 2002
Weiß Kreuz Glühen Dramatic Soundtrack 1 2003
Star Ocean: Till the End of Time Original Soundtrack Vol.1 2003
Weiß Kreuz Glühen Dramatic Soundtrack 2 2003
Star Ocean Till the End of Time Original Soundtrack Vol.2 2003
Star Ocean Till the End of Time Arrange Album 2003
Star Ocean Till the End of Time Voice Mix Arrange 2003
Star Ocean & Valkyrie Profile Soundtrack the Best 2003
Pluster World Original Soundtrack 2003
Tales of Symphonia Original Soundtrack 2003
Motoi Sakuraba Live Concert "Star Ocean & Valkyrie Profile" (CD & DVD) 2003
Baten Kaitos ~Eternal Wings and the Lost Ocean~ Original Soundtrack 2003
Star Ocean Till the End of Time Director's Cut Original Soundtrack 2004
Famicom 20th Anniversary Arrange Sound Tracks (arranged one track) 2004
Star Ocean Soundtrack 2004
Phantasy Star Online EPISODE I & II Premium Arrange (arranged one track) 2004
Dark Chronicle Premium Arrange (arranged one track) 2004
Pluster World Original Soundtrack 2 2004
Pluster World Original Soundtrack 3 2004
Mario Sports CD ~ Mario Tennis GC & Mario Golf Family Tour The Best 2004
Star Ocean & Valkyrie Profile Arrange The Best Plus 2004
Tales of Rebirth Original Soundtrack 2005
Radiata Stories Original Soundtrack (features three arrangements of Star Ocean pieces) 2005
Duel Masters ~Birth of Super Dragon~ Original Soundtrack 2005
Rogue Galaxy Premium Arrange (arranged one track) 2006
Valkyrie Profile -Lenneth- Original Soundtrack (reprint of 2000 release) 2006
Tales of the Abyss Original Soundtrack 2006
Valkyrie Profile -Lenneth- Arrange Album (reprint of 2000 release) 2006
Baten Kaitos II Original Soundtrack 2006
FM Sound Module Maniax (composed one track) 2006
Valkyrie Profile 2 -Silmeria- Original Soundtrack Vol.1 2006
Valkyrie Profile 2 -Silmeria- Original Soundtrack Vol.2 2006
Valkyrie Profile 2 -Silmeria- Voice Mix Album 2006
Valkyrie Profile 2 -Silmeria- Arrange Album 2006
Motoi Sakuraba Live 2006: Valkyrie Profile 2 2006
Tenshou Gakuen Gekkouroku Original Soundtrack 2006
Tales of the Tempest Original Soundtrack 2007
Trusty Bell ~Chopin's Dream~ Original Score 2007
Tales of Destiny Original Soundtrack (PS2 Version) 2007
Forest of Glass (solo album) 2008
Star Ocean: The First Departure Original Soundtrack 2008
Tales of Symphonia: Dawn of the New World Original Soundtrack 2008
Tales of Vesperia Original Soundtrack 2008
Infinite Undiscovery Original Soundtrack 2008
Star Ocean: The Last Hope Original Soundtrack 2009
Star Ocean: The Last Hope Arrange Soundtrack

Shoji Meguro >>>> Everyone else

Err... Both of KH's and FFXIII's are lackluster.

The top tier of composers are obviousely Nobuo Uematsu and Yasunori Mitsuda.

Below them are the likes of Koji Kondo, Yoko Shimomoura (for her works on SF2 and Secret of Mana).

@ RageBot

Kingdom Heart's music? Sure. Final Fantasy XIII's music? No way. There are alot of fantastic ones. I REALLY love Snow's Theme, Saber's Edge, Eden Under Siege, Born Anew, Fighting Fate, Fang's Theme, Hope's Theme and many others. I hardly remember any of the songs from Kingdom Hearts.

Surprised to see that name here. I love Harry G-W. His music is so different. Kingdom of Heaven soundtrack is one of the best. I recently found out he composed the music for MGS4

Well of course Yoko Shimomura isn't the best composer, but seriously, KH can rival FF13 in terms of music.

(Yes, they're second tier, but they're not lackluster, they're still good)