User blog comment:Hipper/Hipper's Q&A/@comment-27180367-20170820212100/@comment-25980853-20170820214730

Wario vs Bandana Dee.

Waluigi vs Shadow.

Wario vs King Dedede.

Best one was probably Mario vs Sonic.

The worst one was Scrooge McDuck vs Shovel Knight or Pikachu vs Blanka. Seriously, they barely have anything in common.