Here are the results from the previous round:
Dazzler vs. Banshee 23-10
Scarlet Witch vs. Crystal 23-10
Black Widow (Natasha Romanova) vs. The Wasp 21-12
Nova (Richard Rider) vs. Thanos 12-21
Captain Britain (Brian Braddock) vs. Galactus 16-17
Spider-Woman (Jessica Drew) vs. Silver Surfer 16-17
Daredevil (Matt Murdock) vs. Taskmaster 25-8
Medusa vs. Mystique 23-10
You vote for the one who you like more, not who's the strongest in a fight and have fun:
Galactus vs. Thanos
Scarlet Witch vs. Medusa
Daredevil (Matt Murdock) vs. Dazzler
Black Widow (Natasha Romanova) vs. Silver Surfer