I'd like to see Conan and Capt. America as a team. How's that for odd.
Note: Conan and Capt. America did fight once in one of those 'what if' comic books. Capt. America had his ass handed to him, but still, love to see those two as a team. One fights with a sword, the other, a shield.
If i had to add more, then Batman, for sure. I love the hero's that rely on skill and wits over any real super power. There are a few others that would fit into this category, but i am at a loss to recall their names.