raise the flop in hand 1 versus this guy. get it in on the turn. that T sucked for your hand, but with a nice flop raise you have built the pot up enough that you don't really care what comes against this guy (or at least I wouldn't).

hand 2 is meh. If it was just 1 overcard I would probably go for 3 streets of value.

hand 3, I usually don't Cbet without a little bit of the board hitting me against these guys, but then I don't let go to a turn bet either. as played I would def. call the river. flushes be damned.

edit: BTW, I stack off very lightly against maniacs, so take my advice for what it's worth. if you aren't comfortable doing that, take some different lines than I suggest