Kecleon. I use it more than I use Castform.

Jynx or Mr. Mime?

Hmm Mr.Mime I think - I've never really been a fan of Jynx although it's certainly not bad

Trapinch or Nincada?

Trapinch is

Nidoking or Nidoqueen.

Nidoking - I prefer the offense in the case of those two

Dewgong or Glalie?

Dewgong, Glalie is freaky and I never really like the weird thing.

Squirtle or Totodile?

In THIS game I'd have to say Squirtle cos Totodile isn't that great with water moves having attack higher than sp att. Squirtles cuter too

Hoothoot or Natu?

Natu. Xatu isn't half bad!

Togetic or Jumpluff?

Ooo toughie - I think I'll go with Jumpluff because of it's huge speed advantage of annoyer capabilities

Stantler or Girafarig?

Stantler, awesome looking pokemon i guess.

Milotic or Gyarados?

Milotic.

Castform or Kecleon?

~In the darkness shining far beyond the starlight~

I asked this one about 10 posts back

Still I'm gonna say Castform - I love the whole weather change and weather ball idea, making it's movesets very strong - shame it's stats aren't up to much

Azumarill or Quagsire?

Azumarill, Quagsire looks kinda distorted.

Lvl 30 Pikachu or a lvl 30 Raichu?

If it was a Pikachu for the levels up to 30 - I'd go with Raichu as it would have learned thunderbolt already

Weepinbell or Bayleef?

Bayleef, i love this pokemon its awesome.

Gengar or Shuppet?

Gengar - with Shuppet not being evolved it stands no chance - still Gengar > Bannette too

Slaking or Snorlax?