100$ NL TPTK Minraise

[Percussion]

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) FTR converter on zerodivide.cx

MP2 ($145.65)
MP3 ($117.90)
CO ($79.55)
Hero ($138.70)
SB ($175.65)
BB ($74.35)
UTG ($27.50)
UTG+1 ($39.10)
MP1 ($95.05)

Preflop: Hero is Button with A[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img].
UTG calls $1, UTG+1 calls $1, <font color="#666666">2 folds</font>, MP3 calls $1, CO calls $1, <font color="#CC3333">Hero raises to $6</font>, <font color="#666666">2 folds</font>, UTG calls $5, UTG+1 folds, MP3 calls $5, CO folds.

Flop: ($21.50) 8[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, MP3 checks, <font color="#CC3333">Hero bets $15</font>, UTG folds, <font color="#CC3333">MP3 raises to $30</font>, Hero ?

What range of hands do you put villian on?
Raise this or call?