Easy (??) preflop situation AKo

[Freelancer]

MP and me have a lot of history together, I've 3-bet him a few times before. At one point he 4-bet me and I pushed with 99, he called with QTs and rivered a flush (whey). He's a solid player and doesn't get to much out of line postflop, but he's playing a bit on the laggy side preflop.

BTN is a bit on the nitty side and doesn't get out of line at all. He's the basic 2+2 template player, he's a thinking player though and capable of making a move occasionally.

Oh yeah both are 2+2, BTN is probably a poster and MP is mostly a lurker. (meh had a little conversation with both, I expect BTN to berate me for that [img]/images/graemlins/tongue.gif[/img])

I get dealt AKo
MP raises to 8$
I reraise to 25$
BTN moves all in.

Effective stacks 200$, so its 175$ for me to call.