Going to take a brief approach. I may come back to it later:

I'm not going to include Beta Ray Bill, Spider-Woman or US Agent as I don't really count them.

Feedback, Ghost Girl, Groundhog and Manbot didn't really enough have time/characterization for me to judge them.

Centennial, MMLJ and Puck II are probably my least favourite characters on the list.

Puck, Sasquatch, Wild Child are my favourites.