Mine are RPG heavy... But meh. I love RPGs.
1: Fire Emblem 7: Amazing story, masterful and strategic gameplay, realistic characters even in such a fantastic world, emotionally driven plot, amazing twists and a truly awe inspiring soundtrack. I have put more than 200 hours into this game, and even talking about it now makes me want to play it again.
2: Final Fantasy IV: I own this game on every platform that it is possible to own it on. Soon to add the PSP version to that list. I've beaten it more than 16 times, some back to back. I've done 100% Runs, Speed Runs, Cecil Only Runs, and done everything the game has to offer, BUT I CAN'T PUT IT DOWN. It's an amazing game, with great characters, music, backgrounds and with a touching redemption story, the first Redemption story of its kind in a game. FF IV is the best FF to me.
3: Tales of the Abyss: This game. THIS GAME. Is awesome. Although it sticks to the Tales formula, it still ups the ante in almost every way. The voices are those of Voice Actors from Funimation and Toei, the plot actually had me in tears with the aptly named Tear, and Luke's journey from lazy and spoiled brat to hero is truly a great tale.
Honorable mentions to:
-Megaman X: Command Mission
-Fire Emblem 9
-Kingdom Hearts II
-Valkyria Chronicles I & II
-Borderlands
-Assassin's Creed II
-Raptor, out.