Croagunk stays as it is since I think it hates Toxicroak and jabbing Brock after evolution maybe too painful already. Happiny evolves to Chansey only since Blissey seems a bit too much. No one thought of this. Dawn gaining an Eevee basically makes the story too obvious. Brock gains a baby one instead, not from an egg. It'll evolve to a possible evolution in Gen. V, maybe a Rock or Ground-type. Rhyhorn isn't a crybaby like everyone says and it'll evolve into the powerhouse Rhyperior.
A combination of her Diamond, Pearl, and Platinum team. Getting a Spiritomb would just seem weird, especially because of that episode. But if she does get one, I guess it would show that she strong enough to catch one, or she has aura too.