The strongest is Swampert. No arguments. Blastoise cannot compare to Swampert in any way at all. It supports, it doesn't fight. Feralgiatr can be strong, but it needs set up and a bit of luck. Swampert is good whenever with whatever.
However, though I do find Swampert to be a capable battler and a cool Pokémon in general, I like Feraligatr best. And I'm not saying that to make SapphireL happy, either(well, partly ;P). It's an
alligator, how cool is that? =D It also has a very smooth design, as well as a beautiful Shining form. Give it a chance to Swords Dance and it can sweep an entire Team with an above average Base Attack Stat =]
Blastoise....Meh. Could be better, coould be worse.
~*CB*~
The 8th Champion