Should we play AKs against tight EP raiser?

[Ralle]

It's a tight limit hold'em game, let's say the limits are 10/20. A tight early position player opens the pot for a raise and it's folded to us on the button with AKs. We have strong indications that the blinds will fold. Should we play our AKs if we assume that our opponent would raise in this situation with AA, KK, QQ and AK?

Our opponent could have any of three combinations each of AA, KK, QQ with our suit, QQ without our suit, and AKs. Also there are six possible combinations of AKo. Using Cardplayer's calculator this gives us a 41.9% chance of ending up with the best hand in a showdown.

If the raiser goes all-in with his pre-flop raise, then our expected value is +3.0 if we call (10/20 limits), indicating that we should play the hand in this situation. But, what if there are plenty of chips left to bet? Should we still play our AKs? We can assume that our opponent will bluff with QQ against either a K or A on the board, possibly not against both. He will also bluff with AK, i.e. represent a big pair, even if he misses.