While I have no bearing on the argument, Fonz did'nt run into any MK mains in the tournament. So the MK ban really had no effect on Fonz' individual matches.
The fact that MK mains couldn't go their main and lost because of it could have a lot to do with that. The point I'm making with all of this is that, Fonz has without a doubt distinguished himself, but in a disjoint circumstance. Kirby, Diddy and Wario are probably the most choice MUs Ganon could ask for in the upper tiers. In light of the fact that no other 'Dorf has had the opportunity to work in the absence of oppressive MKs, let alone other extremely common tourney threats (Falco, D3, Snake), it's hard to justify a #1 spot with such a select example.
As it stands, I'm fully behind Fonz being at least #3. If he can offer a similar performance in standard tourney, I'll be the first to abdicate and concede him as #1.