Definately not even close to a complete answer, but just a small observation. I found out recently that my results with AK on the lower ($25) tables were much worse than on the tables with higher stakes.
Against bad players the chance of one of them hitting a rag flop is about ten times larger than with good players in the hand, since the bad players will easily call the pf raise with A9s or something like that. So, against people who could easily call with Axs, only bet into the flop if there is not more than 1 of them. A call can mean anything from slowplayed set to flush draw to medium overpair to overcard + gutshot. Add to that the fact that they will not lay down a medium pair or overcards, you see that attempts to steal will cost you a lot of money. (In fact, I succeeded stealing with a pot-sized bet around 30% of the time, which is clearly not enough.)
Against decent players you can fire a pot sized bet, since they will fold their draws and maybe even a medium pair. Against any resistance, fold.
I do not like limping in EP. You raise to increase the number of favorable flops. In an unraised pot, a flop like
[8h][Ts] is not favorable, especially against many limpers. In a raised pot, however, this kind of flop becomes favorable because there is a much smaller chance of people having hit it.
Just limping seems to me like a way of minimizing the losses. What flop do you hope for when you limp in and you see the flop 5 way? Anything without a K or A is already trouble, and even in the case of, say,
[Jh][Ks] you have no idea where you're at.
You often hear that AK is a drawing hand, but I don't really see why. Drawing hands need many callers to give the right odds. But in the case of AK, many callers means that many of your outs are likely gone, especially in the "AnyAce" games, so that it becomes unplayable with most flops. Even if you hit your draw, it is not likely to be the best hand.
Pieter