Big unsuited aces in LP or blinds

[Swax]

I've been playing casino 3/6 for about two months now, and although I'm up I still am not sure that I'm playing optimally for the typical climate of these games - specifically, they make party .5/1 look like a bunch of TAG's, no joke. Generally there are 6 to 7 people to a flop - most people have VPIP's over 60%, open limping and cold calling happen on every hand, and as a result of this, TPTK is very, very rarely good enough to win a hand.

Therefore, my question is what to do with a big unsuited ace on the button. If there's five or so limpers in front of you, and the BB is guaranteed to call with any two, is a hand like AQo, which obviously derives all of its strength from TPTK/TPGK possibilites, definitely a raise here? I'm not really worried about "giving odds" to draws, I mean, the pot's already big enough that everyone's calling to the turn even without a piece of the board in this type of game - but is there really a significant equity edge for a hand with a ceiling of TPTK that's going to be dodging every draw under the sun? Obviously with any suited big ace, I'm raising without a doubt. I'm sure tho offsuit ace probably is a raise - maybe getting my AQo repeatedly crushed is making me need some convincing.

How about if we're in the blinds and everyone limps to us, and now we're out of position as well? Still a good raise? Should it matter whether we have AKo, AQo, or AJo? What about KQo? Obviosuly all figure to be the best hand preflop, but the low ceiling of them just makes me wary.

As for postflop, how should we play them if we hit our TPTK on a relatively coordinated board? Bet/raise/3-bet the flop to try and isolate drawers? Play the flop slowly and spring to life on a safe turn card?

For example, last night I'm in the BB with AQo. Five limp to me, I don't raise, but only because somebody angrily mucked their cards in MP3 and a Q was exposed, weaking my hand significantly. Normally I would. Flop is Ac 8d 9d. I bet out, 3 calls, CO raises, button folds, I 3-bet, 2 calls, one fold, CO caps, 3 calls.

Is this a good line? It turns out that I was up against 67off and QJ of diamonds, so I was probably a sitting duck no matter what I did, but i just don't feel confident about my play. With an average of three or four seeing the flop, I'm 3-betting without abandon here, but when I'm constantly dodging over half the deck to have TPGK hold up, it just doesn't seem right.

Sorry if this is not the clearest question - but it seems that all of my big losses on this type of game are with offsuit broadway that hits and gets caught. Any advice would be excellent.