My favorite type is actually dragon. :) They do have amazing stats, which is probably why they are only super-effective against dragons. Not to mention that the majority of them can learn moves like flamethrower, earthquake, thunderbolt, etc. Plus, with the new games, they have Hydreigon, my favorite Pokemon as of yet. It's typing is unique, Dark/Dragon, and it has amazing special attack. The ability's kind of useless though. It doesn't really need levitate at all, but, whatever. I also think the ice weakness was to keep dragons from being too powerful, even though they don't show up much. Ghost is sort of parallel to dragon in a way. Until dark types came out, the only weakness for ghost was ghost, and that's probably why Gengar was given the poison half, so that they wouldn't be too powerful.

I'm just going to finish up by pointing out the highlights of another dragon type I have, Altaria. While Altaria isn't the best offensively, it has amazing special defense, and with its new move Cotton Guard, its defense is great too. Dragon Dance helps its attack out, so Dragon Claw works great. And it has Refresh to heal away status problems, though its ability has a chance to do the same, meaning it could be replaced easily with Aerial Ace or something.

Okay, I'm done now. :D