Again, they're not evil! I remember reading an official Pokémon book (no, it was not in the manga)* where Ash went to the Pokémon Tower and found a Gengar and a Haunter that just wanted someone to play with which proves they aren't evil!
Now, when I say that Ice-types are "so cool they're frozen", that's not my opinion. It's a fact. Why do you think they're called ice types?
I have a couple of thoughts for changes to Pokémon, and if someone were to tell Nintendo about it then that would be a nice thing to do.
First of all, I think there should be a light type for the moves like SolarBeam, Sunny Day, Moonlight, and Aurora Beam, because they really don't have much to do with the type that they have been given. Some Electric-type Pokémon have more to do with light than they do with electricity. Light needs to be a Pokémon type. Period.