KK when an ace flops and I get bet into

[TimovieMan]

I’m new to the table, and I get to pick a seat where the two players to my immediate left are weak-tight, and the 2nd and 3rd player on my right are fishy. YAAAAAY!
Rest of the table, however, are unknowns (this includes MP3).

First hand in, I just posted in the CO, and I get dealt cowboys! LOTERIA! My eyes turn into $-signs… [img]/images/graemlins/tongue.gif[/img]

Action goes:

Preflop: hero is in the CO with K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img]
3 folds, MP1 calls, MP2 calls, <font color="red">MP3 raises</font>, <font color="red">Hero 3-bets</font>, 5 folds, <font color="red">MP3 caps</font>, Hero calls.

Flop: A[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img]
<font color="red">MP3 bets</font>, <font color="red">Hero ?????</font>

The dreaded ace fell and I get bet into by the unknown that capped preflop…

Should I fear his pocket aces, or his AK, or should I be value-raising his KK or QQ or whatever else he decided to cap with?

I can think of several good reasons why folding is good, why calling all the way to showdown is good, and why raising is good…
But what’s the standard line in a situation like this? The WA/WB approach?