Pokemon Gym Leader Challenge?

So my friends and I are doing a tournament between each other. I have been chosen as the Ice Gym Leader. No legendaries/pseudo-legends can be picked. It also must be from only generations 1-4. I wasn't quite sure which six I should choose. From a quick glance on serebii, I found seven or so possible pkmn: lapras, cloyster, weavile, glaceon, mamoswine, froslass, abomasnow. If you could pick six pkmn (they dont have to be what I chose from), that would be great. I would also appreciate if you could post the movesets If you want to further help, then the abilities, natures, and held items are also needed. Thank you