Chewbacca vs Captain America
Purely H2H. No shield. No armor. No bowcaster (duh) or any weapons for that matter. Both at their best. Both bloodlusted.
Round 1. Fight in an open field.
Round 2. Fight in a small, narrow alley. About 15' wide.
Round 3. Fight in an elevator like in WS.
Round 4. Not a fight. Arm wrestling.