Standing with a bit of a crouch, the Hunter stands right around 5 inches tall. He's not much taller than a standard human figure in the line, but he is much bulkier. Chimera's only 3 1/3 inches tall, but that seems about right when compared with his in-game size. He's kind of like a creepy little spider monkey that swings off the ceilings. The Chimera might fit in well with your Palisades or NECA Resident Evil figures, but the Hunter will definitely be too short. They'd go great with a variety of other toylines, however, such as G.I. Joe or Teenage Mutant Ninja Turtles.
I think that this set, pairing two horrific creatures together, is really one of the top sets in the line. While Chimera's action feature is pretty nonfunctional, he's still a decent little figure that I believe would fit in OK with your Palisades or NECA Resident Evil figures if you're a little lenient on size. No one else has made a Chimera, so this is the only game in town. The Hunter, while not able to fit in with those other lines, is still a really cool figure. While I only own one Chimera, I actually own three of the Hunters as whenever I found one loose at a Toy Show I would snag it. I'd go with a good and a 1/2 on this set, probably with the 1/2 swing because of the cool chunk of flesh attached to the Hunter's claw. That's just gruesome!