1. God of War III
2. Devil May Cry 3
3. inFamous 2
4. Hulk Ultimate Destruction
5. World of Warcraft

1. Pikmin
2. Pokemon Sapphire
3. Super Mario Galaxy
4. The Legend of Zelda Wind Waker
5. Pokemon Pearl

Hmm... that might not be totally correct, but yeah.

in no order

gta san andreas
need for speed most wanted
metal gear solid
the sims
cod black ops

1. Everquest
2. Civilization
3. Ico
4. Grim Fandango
5. Shadow of the colossus
6. Dark souls
7. Journey
8. Half-Life
9. Okami
10. Baldur's gate

If you want to sink your teeth in this sites user's opinions, read through last years top 50 games of all time thread.
http://gamrconnect.vgchartz.com/thread.php?id=136572&page=1

My top 10 has 2 new entries this year, Dark souls and Journey both blew me away.

1=2 Final Fantasy 8, and Deus Ex. They kept alternating which one I liked more so often that I gave up and they're both my favorite game.

3. Zelda Ocarina of Time
4. Mario 64
5. Deus Ex Human Revolution

Honorable Mentions: Final Fantasy X-2 :), Morrowind, Mech Warrior 2 Mercenaries, Supreme Commander

1. Skies of Arcadia
2. The Legend of Zelda: Ocarina of Time
3. Halo: Combat Evolved
4. Ninja Gaiden (2004)
5. Resident Evil 4

1.) Chrono Trigger
2.) LoZ ALttP
3.) SSBM
4.) Uncharted 2
5.) Red Dead Redemption

Hard to put these in order but here goes nothing:
1.) Final Fantasy VII (this is the only easy one)
2.) Suikoden III
3.) Demon's Souls
4.) Megaman 2
5.) Sonic 3 junctioned with Sonic & Knuckles

1. Romance of The Three Kingdom XI
2. Black and White
3. Final Fantasy VIII
4. Metal Gear Solid 3
5. Spore with Galactic Adventures

1. The Legend of Zelda
2. Zelda: A Link to the Past
3. Bioshock
4. Super Mario World
5. Metroid Prime

-------------------

My next 5 faves:

6. Castlevania: Symphony of the Night
7. Zelda: Ocarina of Time
8. Zelda: Majora's Mask
9. TIE:  Super Metroid / SMW2: Yoshi's Island 
10. Resident Evil 4