[witeknite]

Hand 1
You can't really protect your hand on the flop, but you are still way ahead. Raise for value. Also, hand protection is a relative thing. If you get even one fold from someone that has outs against your hand, you have protected it some. This is magnified in large pots which this one most certainly is.

Hand 2
How did you arrive at 8:1? Remember if he has a FD, you have 36 "outs". If he has a pair without an A of K kicker, you have 6 outs. I'm leaning towards raise on this flop. If BB cold-calls and UTG 3-bets, I call and fold turn UI. If he BB folds and UTG calls, I bet turn and check behind on river.

Hand 4
A donk is the current forum turn for a stop and go. It's not a question of saving chips. If you think he's on a draw, you shouldn't check to him since he will check behind a bunch. If you think he has some kind of made hand, you should check/fold the turn. You do not have odds even if all 6 outs are clean. Even with implied odds.

Hand 10 vs Hand 3
HU vs. 3-way
Overs vs. Overs + NFD
Small pot vs. big pot

You should play more aggressively in big pots. If you bet, you get to charge either or both to draw. You could get a fold from a hand like A5 buying you some outs. If button folds you might have the chance to showdown for one bet by checking river. If you get c/r on turn you have great odds to call and you might be able to raise him on the river if you hit.

Giving free cards in small pots isn't that bad. He will c/r you on that turn HU a good amount of time with quite a few hands including some that are worse than yours. More low cards on flop and since it's HU vs. a blind it can be a play quite often here. If he's making a play, he either folds turn getting you nothing, or bluff c/r's making you fold the best hand. You will not be able to call the c/r though since it could also be a made hand that you have at best 6 outs against. Don't put yourself in a situation where you cannot make a good decision. When you check behind on the turn, he leads the river and you call, you get 1 bet from a bluff, and lose 1 bet to a better hand. Plus you get a card to spike an A or a K with.

WiteKnite