Hey! Don't want to clog the thread with this so I figured I'd respond here. You are right, Wario's chomp always beats spindash, but if Sonic holds the charge he can punish the endlag of Chomp which does more damage than a chomp does! It's useful in the MU, but preemptive chomping leads to a large deficit 
Wario also struggles to catch Sonic so Wafting him is hard
Wario also struggles to catch Sonic so Wafting him is hard