well, I'd really have to say that this one is up to you. I do like that 100 damage, but it's always nice to have all weaknesses covered.
If you're really wanting an opinion, I'd say go HP. A move that should do a lot of damage for you is Thunderbolt, and the only reason you should use something else is if it is a ground pokemon. HP may not always do 100 damage, but you should only really rely on the STAB of Thunderbolt, and to get you out of a pinch use HP.
Hope I helped!![]()