also I think it depends how likely you think the blinds are to call, you don't want to run your big pairs against 3 other opps, and if you smooth call the pot starts looking pretty temping with a 76s. Generally I think you should raise. Best smooth call here IMHO is if you're the BB and everyone else is out.

With AK I'm more iffy, I think either play is good. Raising if nothing else may get you a free turn card, but if you get re re raised you're mucking the hand.