i like to raise with PF with big hands to narrow the field.
I also like to raise PF with marginal/weaker hands to get action from the table. from there i like to play the flop and try and take it down. if i can show off a
bluff, i know i can get more action from players when i raise with big hands.
I like the saying "if your hand isnt worth a raise, its not worth playing." I also like to take it further and think "if my hand is worth raising, its worth a reraise." of course i'm prepaired to lay my hand down if get reraised over the top. if the person just calls i feel i have the better hand. to me that shows a bit more weakness then just a simple call. If someone tries to reraise, but then just calls a reraise over that..im thinking "he tried to take the pot with a weak hand, but doesnt want to just give up his chips."
Preflop i like to keep my only options as: Folding or raising.
I dont think theres anything wrong with just limping in, especially with small pockets or suited connectors. or with AA or KK in early, but this would depend on the table. if its full of limpers...ill want to raise. if its a table full of action players, i like to limp, get raised and then come over the top with my AA or KK.