I think you should use Cinderace, because of Libero it can change its type, which can make it really hard to counter. Also, it is a pure fire type (at first) and Blaziken is a Fire-and-FIghting type, which means it has more weaknesses. But I agree with Jake Charizard, it really comes down to personal preference.
EVs: 252 Attack / 252 Spe/4 HP
- Pyro Ball
- Sucker Punch
- Iron Head
People say that it is trash, but I have won almost every battle, thanks to this Cinderace.