The only good fighters I've fought on For Glory were - somewhat poor memory - were a pink Yoshi, several Foxes, Falcos, Captain Falcons (the most common), a couple Marios, Palutenas, and several Marths/Lucinas, Jigglypuffs, Zeldas, ZSS's, maybe some Ikes, some Greninjas, and ironically, Little Mac. I still remember that one Little Mac who barely spammed and fought like a counter puncher. You mess up anything and he punishes you hard.
Lucarios, Pikachus, Charizards, Ganondorfs, Links, Toon Links, Sheiks, the other Little Macs, Robins, (Dark) Pits (spamming arrows or side B), Luigi (spamming Luigi Tornado over and over), Pac-Men (spamming side B and dash attack), and Samuses (dash attack, Charge shot, and missiles) make up the spam crew.
I've gotten to the point where if I fight a Lucario, all I do is beat them to an inch of their life and reflect their obviously spamming Aura Sphere to win...
I should stop playing For Glory and sometimes For Fun since I might end up with hypertension because of this... ludicrous amount of spammers.