That is a very good question LB. It all depends on a lot of factors to me. Like Jimbo says who is on the table is one key as you tend to get to know how they play. Also postion in the hand and the chips stacks of you and players behind you come into play with me. If you push you will elminate most marginal hands and keep them from drawing out on you. On the other hand slow plays are attractive if you want to maximize the pot bu it increases the chances someone of drawing out on you. Of course if Bams in the hand all bets are off .
Who knows what is best as its all in the hands of the poker Gods!!