>>19819258Furret is longer than Charizard, but it isn't bigger.
Charizard is 5'7"
Furret is 5'11"
Pic related is a size comparison using the models from the Pokepark Wii games, which are extremely consistent with the listed Pokedex sizes.
If you count Charizard's horns as part of it's height, Furret is only a fraction of an inch higher. If you don't count the horns, then Furret is almost exactly 4 inches longer.