I just like his mega the most out of the 3 and I already used mega Blaziken quite a bit. I always get both of the versions and play through them anyway, so I'll get to playthrough with Mudkip as well.
Good choices, I love them too! I don't know if I'm getting the ORAS remakes so soon, but probably on the pipeline. Thing is, I don't know which starter to pick! What about you?