Ok,
First a general comment regarding playing these types of opponents. Play your big hands hard and fast and only chase multi-way draws if the action doesn't get crazy. These guys play just about the same way every time. They will call with draws, bottom pair, etc. types of hands and then will start leading out, c/r'ing, etc. when they make their big hands.

Hand 1 - His river bet is so small you have to call here, as he may lead out thinking his Ax hand is good now that there are two pair on the board. With that said I would expect to see a flush here a lot, since these types of players LOVE to play any two suited cards.

Hand 2 - There is no way I am cbetting this flop against 3 villains and would probably just fold to CO's bet. Like I mentioned earlier calling stations like this are just not smart enough to fold when they have any sort of a hand so you are just spewing chips trying to get them to fold when YOU don't have anything.