Fun Fact: Of the D&P legendary trio, Azelf is the only one considered usable in competative play.

Fun Fact 2: Mawile actually isn't all that good... Oh well, maybe that'll change if they give it an evolution next generation. It's one of the many pokemon that could really use one... *glares at Pachirisu*

Mawile could definately use some more/better moves ^.^;; Though the "Swallow" set amuses the hell out of me, it's not particularly useful in most cases. Still, I love the cute evilish bugger X3

Azelf was the only one I really wanted after looking at the pictures of the trio XD So if he's the most useful one too than I lucked out. (And I checked their movelists on Bulbapedia, so I know that is true)

Stockpile is a lot better now that it raises defence and special defence each time you use it, though Spit Up and Swallow aren't too good (maybe Swallow, since that heals, but doing either move makes you lose the defence boosts...).

And my personal favorite of the 3 is Mespirit. I named mine Mithos, since Mithos is also awesome~

And I personally use Serebii, but both are effective sites. It's really a matter of preferance there.