There is an unimaginable difference between in-game battling and competitive play. In your list, the only ones who are even worse than Charizard are Flareon and Typhlosion. Those 3, with Torkoal are the worst fire types.

The best is Infernape, though I don't like it all.
Followedby:

Blaziken/Arcanine
Magmotar

And you listed Camerupt twice. :\