About Knight's wishings and pets

Hello there!
It seems to be this forum is just a little dead, isn't it? So let's rock it a bit! :)

Well, now I'm playing with a Knight (Str 18/**, Dex 9, Con 14, Cha 17, Int 10, Wis 14), and I found a blessed magic lamp, so a wish may be on its way… What's the best stuff I can wish for? A friend told me to ask for a powerful  pet (i.e., a Solar) or a Dragon, for using it as mount, too. What's the best Dragon which could be used as pet for a Knight? A Grey or Silver one, for instance?

I also got a blessed figurine of a baby green dragon? Could this critter become a full grown-up dragon -- eating so much corpses, I guess--?

Thanks,
Darth Nepharious