Top 5's of my liking (not ranked in any order):
Blaziken
ninetales (cool and strong)
Moltress
Rapidash (like it's name, it's ravishing)
Entei
Hey! Actually i don't have a absolute fav over fire types, but the very first is Growlithe, from gold version. Then it's torchic, from Ruby... But those 5 are far from all. i like others too (execpt Magmar), it's jus that i don't name them.