Undecided even though I'm leaning towards the 360 version.
360
+DLC
+superior controls since Rockstar made R2 the shoot button.
+achievements
+rumble
-I'll miss the online multiplayer since I don't have Gold.
-Afraid of another RROD.
PS3
+Home trophy support
+free online play
+no worry of my system dying and runs whisper quiet
-worse controls
-no rumble for me
360
+DLC
+superior controls since Rockstar made R2 the shoot button.
+achievements
+rumble
-I'll miss the online multiplayer since I don't have Gold.
-Afraid of another RROD.
PS3
+Home trophy support
+free online play
+no worry of my system dying and runs whisper quiet
-worse controls
-no rumble for me