Ok lets see how I do.
All Pro Football - I play once a week still. Top 3 favorite game.
NHL 10 - Amazing game. One of the best online games.
Madden 10 - Really enjoyed this year and still play it often.
Fifa 09 - Like it, but lack of sliders has kind of limit my time with it.
Fight Night Rd 4 - Still playing it.
NBA Live 10 - Still play it often. Great Live for a change.
Forza 2 - Played it a ton, got my moneys worth of it.
Dirt 2 - BADASS!!!! Need to play it more.
GTA IV - On last mission, need to beat it, started LaTD.
NHL 09 - Moved on to 10
Trials - Very cool little game. Beat almost all of it.
Brothers in Arms HH - Couple hours in.
Assassins Creed - So repetitive I lost interest in playing it
UFC 2009 - Played a ton, got my money worth
Ultimate Alliance 2 - Pretty darn far into it, need to finish
Halo Wars - Did not dig it, played it couple hours and traded in.
Virtua Fighter 5 - Played it a ton Moved on to Tekken 6
Rock Band - Played it so much just about all the equip don't work any longer
Battlefield 1943 - Like it alot, just have not played it enough.
Batman AA - Beat it, one of the best games of the year.
Mercenaries 2 - Played it for a little while, need to play it more.
Tiger 09 - To easy, I lost interest at shooting 20 under to much lol
Fallout 3 - Have yet to beat. But plan on it
Skate 2 - Great game and played it this weekend
NCAA 09 - Not as good as madden so no more play time
Gears 1 & 2 - Beat both, not a fan of multiplayer so put it down.
MLB 2k9 - Do we really need to talk about why I don't play this.
Condemned - Cool game but can't get past certain spot.
Guitar Hero 3 - One of my fav games ever.
Too Human - Cool game but is really hard
BF Bad company - Beat it, played multiplayer and then put it down.
Rainbow Vegas 1 & 2 - Played a lot and then shelved
Ace Combat 6 - Cool game but to arcade for me
Mass Effect - Almost beat it but traded it in
Dead or Alive 4 - Tekken 6 and VF5 are better
Saints row 1 & 2 - Never beat them but played them both a good bit.
Splinter Cell DA - Got pretty far but liked the multiplayer alot more. Just poor servers force me to trade it in.
Turok - Beat it and traded in
Lego Star wars - Traded in after a few hours
Halo 3 - Beat it and traded in
Crackdown - Played hours and hours and hours of this
Rockstar table tennis - Cool game just gets old after a while
Tony Hawk Project 8 - Skate 2 took its place
Dead Rising - Almost beat it but lost interest and traded in. Wish I did not cause I would like to play it again
Demon Souls - Playing this a good bit right now, just hard game
Tekken 6 - Best fight game ever
NBA 2k9 - Still play it but not as much as LIVE
Dead Space - Still trying to beat it, but i am stuck at a spot right now
Uncharted - Beat it, need to get second one soon
MGS - To much cut scenes so i traded it in.
Thats about what I have in my collection of 360 and PS3 right now. That is not including sport games of prior years. I have all the nba 2k7, ncaa 07-09, etc etc
I don't even want to attempt my PC titles, that would be another list twice as long as this one.