what games do you have and high scores? i think i've reached my peak in these games:
rope n' fly 870
flight control 60 (ffwd, planes too slow on normal)
photohunt 1,031,012
fling level 20 so far
never really use apps other than shazam, ichoose, and ufart (for hilarious pranks!)
have the t-pain app but haven't used it.