Spiderman vs. Batman--"thwip", "Pow", "thud"
Dr. Doom vs. the Joker--"Insolent fool!"
Shang-Chi or Lady Shiva vs. 5 year old Gohan
Namor vs. Aquaman--"Fish-Talking fool!"
magneto vs. the Metal Men
Flash vs. Quicksilver
Wonder man vs. wonder woman--the amazing amazon wins pretty handily
Captain Marvel vs. Captain Marvel--"there can be only one!"