Any of the Pokemon games I owned, or Elder Scrolls 4: Oblivion.

The Legend of Zelda: The Wind Waker

I regret not completeing it, as it was really enjoyable, especially after i got over the shock of the cartoon graphics

ff12.

Because although pretty was the most boring RPG I can remeber.

Dmc 3
Jak II
MGS2
Star fox adventures
FFVIII

Final Fantasy VIII - I stopped at the third disc. I hated the battle/draw/junction system. The story was kinda boring most of the times. The characters were pretty cool though.

Okami - Found it very easy. And if it's easy, then it's boring for me. I need it to be more challenging. It was a very beautiful game though.

Final Fantasy X-2 - Bad.

Battalion Wars II
No More Heroes
Metroid Prime Hunters
The Legend Of Zelda: Oracle Of Seasons (working on it)
Metroid Prime 2: Echoes
Star Wars: Knights Of The Old Republic
Starcraft (damn Protoss campaign)

No More Heroes
Super Mario Galaxy

GTA san Andreas.
All the Tales games (Good that Soriku is on Vacation miss him though).
Dragon Quest VIII.

Etc;..

Uncharted I got to 91% and just cant bring myself to finish it.

I rarely finish games. I'm just not very good. I am about to finish Super Mario Galaxy. Last game before that was Spiro 3. I wish Insomniac was still developing them.