Well on the 8-8 hand its not the limper you have to worry about, but the 3 big stacks still left to play.With those stacks I would opt to push or fold for a win. Or call and hopefully you hit a set against a big stack (but with blinds 150-300 I wouldnt recomend it.

A-Q I FOLD (Based on the read)
K-Q I FOLD ( DONT LIKE PLaYING K-Q IN EP WITH A RELITIVELY LOW STACK if someone raises your PFR pot committed so once again push or fold)
10-10 This is a situational and a marginal push but it worked out ok...