Best Fire-Type Starter (Pokemon)?

Well, I've been playing Soul Silver for like a couple of weeks or so. I'm at the second elite four and I'm about to start preparing my team. I want to have a starter for my fire type and I don't know which one is the best. I have a Typhlosion (lv.47), Charizard (Lv. 39), Blaziken (Lv. 48), and Infernape (Lv.62). Level isn't actually and object, because I have a time-consuming, but effective way to level them up. I'm very fond of them all and my fondness may be getting in the way of my judgement as far as which one is most effective. Can anyone help? :O