Ash's best Pokémon? [Spoiler alert!]

[Blue Cobra]

I think Ash's best pokemon is Pikachu, because he is Ash's first and most trained pokemon.
But for not to be boring, i will say Charizard, because it is very powerful and is not afraid of anything

[GaryWasHer]

Of course Charizard is the best.

[FireMeowth]

Eh, Pikachu is rarely used anymore (not that it ever was used too often), so I wouldn't really say it's his strongest. The only battling it ever does is blasting off Team Rocket. And defeating a Pokémon or two every 100 episodes or so...

Charizard has always been portrayed as one of Ash's strongest Pokémon, and have been in training for "years". It's probably one of the strongest...
...However, I think his strongest Pokémon must be Infernape. It seems to be a bit stronger than Charizard*, and with its Blaze ability activated, it becomes even MORE powerful!

(*In my opinion, at least.)

[Obsession]

Pigeot was always my favourite. It was so called 'acclaimed' that Charizard is the strongest, but Ash used Pigeot/Pidgeotto far more times than he ever used his charizard. (You could say about the Charizard valley if you wanted to, but meh.). It also looks cool too.

[Blue]

Definitely, Ash's best Pokémon is Pikachu. Why? Only because it can defeat a Rhydon with Thunderbolt whereas any other Pokémon cannot do the same.

Is it not enough reason to be the best? xD

[Konstandinos1998]

I think Ash's staraptor is the best because it has strong flying type attack like brave bird and the most powerfull fighting type (for me) attack!!!