final table, raise UTG with 55, chip leader calls

[jb9]

This is the final table of a UB 33 MTT. Usual payout structure (i.e., 7-4 are not too different in payout, 3, 2, and 1 are much bigger).

Everyone has been playing fairly aggressively and pretty tight (including me). The button is the chip leader and has been the most aggressive recently.

A couple of questions:

Should I have played differently preflop?
Should I have gone all in on flop, turn, or river (I assume my only bet is all in...)?

7 handed -- blinds 1000/2000 with 200 antes

SB: 46700
BB: 30640
Hero (UTG): 27535
MP1: 27700
MP2: 26355
CO: 42255
Button: 76315

Hero: 5[img]/images/graemlins/club.gif[/img]5[img]/images/graemlins/diamond.gif[/img]

Pre-flop: Hero raises to 6000, 3 folds, button calls, blinds fold

Flop: 4[img]/images/graemlins/spade.gif[/img]T[img]/images/graemlins/diamond.gif[/img]K[img]/images/graemlins/heart.gif[/img]
Pot = 16,400; Hero has 21,335; Button has 70,115

Hero checks. Button checks.

Turn: J[img]/images/graemlins/heart.gif[/img]

Hero checks. Button checks.

River: J[img]/images/graemlins/spade.gif[/img]

Hero checks. Button checks.