I don't even care. The Thing, man. The Thing is like that all the time and he's actually in control of himself. He may not be quite as big or strong as the Hulk, but he's got the brains to outsmart him. He's not just driven by blind rage.
"a man is a success if he gets up in the morning and he gets to bed at night, and in between he does what he wants to do."
-- bob dylan
As for Hulk vs. Thing, it depends on how mad the Hulk is and whether or not the Thing can outsmart the Hulk before he gets ground to gravel.
CA vs. CP would be an easy one. All CA has to do is throw his shield at a squirrel or something to distact CP and then kick the crap out of him when he's off trying to save the animal. Heart power won't do jack against a good, swift kick in the seeds.