UTG is a half decent TAG 18/12/2.3 and I have not been in any pots with them before this hand.
Party Poker 2/4 Hold'em (10 handed)
FTR converter on zerodivide.cx
Preflop: Hero is MP1 with J[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/club.gif[/img]. CO posts a blind of $3.
<font color="#CC3333">UTG raises</font>, <font color="#666666">
2 folds</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">
2 folds</font>, CO (poster) calls, <font color="#666666">
3 folds</font>, <font color="#CC3333">UTG caps</font>, Hero calls, CO calls.
Flop: (14 SB) 3[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">UTG bets</font>, <font color="#CC3333">Hero raises</font>, CO folds, <font color="#CC3333">UTG 3-bets</font>, Hero calls.
Turn: (10 BB) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">UTG 3-bets</font>, Hero calls.
River: (16 BB) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero?
Given the action this looks like AA, KK or QQ all the way, the only other hand that could have been played this way is AK diamonds but the river takes that posibility away. I initially thought that there was no way I could value bet with a 4 flush on board but maybe I can!
I will give my thoughts in a little while.