Good non-competitive pokemon to have on your team in Soulsilver

I'd replace that meowth with a grass type, like bellsprout, to help balance out the types. Just my opinion, take it as you will. I'm known to be wrong.

 

If you're going for power, Fearow would be a better flying choice than Pidgeot, though design wise I do like Pidgeot a lot more lol. Plus that Naughty nature might end up really crippling you, being that it lowers the sp def. http://bulbapedia.bulbagarden.net/wiki/Nature I like using that link for natures. I tend to go for Modest for Sp. attackers and Adamant for attackers. (now that I catch/breed for natures)

But again, you don't have to, I'm just giving a little advice 83 It's all about having fun in your own way the end.

 

I replace my miltank for a magnemite :T

 

Even if you're not going competitive, I'd consider getting something with some more bulk, or just a steel type would work. Meowth/Persian are super cute, but normal types don't have an advantage over anything, so for type coverage I'd go with something like an Agron or a Lucario -something cool and strong!
Feel free to disregard, but that's just my recommendation uvu;;