(I apologize in advance for the length of this) I can't answer this question with one title. Especially when I have picked up almost 1400 games now. Here are my absolute favorite(s): (Yes, I DO play every one of these over and over and I love them all equally pretty much. Picking a single favorite is impossible, I will jot down what COULD be after the list) All Stars Cornhole Lexic MotionX Poker Quest Triazzle Zen Bound Wheelers Treasure Groovin Blocks Durak Labyrinth 2 The Horrible Vikings Stair Dismount Gravity Cannons Marbles Tetryon Cogs Orbital Peggle AMF Bowling Adrenaline Golf Archer 3D Backbreaker PDC Darts Flick Fishing Big Buck Hunter World Tour Paper Toss Monster Pinball Ramp Champ Jet Car Stunts ADoodle Fly Spring Fling Twilight Golf MelonGolf iBlast Moki Crazy Turkey Bumper Stars Minigore Guerilla Bob Castle Warriors 3D Coaster Pack Kim Rhodes Hunting Manic Monkey Mayhem Snake Galaxy Now, If I had to say my ABSOLUTE favorite...I guess I would lean toward 'MotionX Poker Quest'. Such a tough choice, though. I love all of these so much. It may even be a fight between: MotionX Poker Quest Lexic Tetryon Peggle Crazy Turkey
I also tend to play a range of apps, without focusing on just one, but i'd say my top ones are: Mini Squadron iBlast Moki Enigmo Pocket God (doesnt usually keep me going too long, but always come back to it to have a mess around, especially with the minigames!) Peggle Sway I don't actually play Sway too much anymore, but its still one of my favourites, I love the concept and gameplay! I also generally like games that have built in level editors! (wish sway had one!)