Common situation

[LoaferGee12]

Party Poker 1.00/2.00 Hold'em <font color="#0000FF">(6 handed)</font> link

Preflop: Hero is BB with K[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 folds</font>, 2 calls, <font color="#CC3333">Button raises</font>, <font color="#666666">1 folds</font>, Hero calls, MP calls.

Flop: (8.50 SB) 3[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
Hero...

Just not sure if I should be going for the check-raise here against the PF-r or just straight up betting this. I feel like most hands that he's going to bet here crush me.