>>19390247I prefer Encore. I want the opponent to set up so I can turn them into a sitting duck while I can safely set up a Substitute or Leech Seed as they switch. It's even better if I lock them into a move like Recover, Rest or Wish. Turns Whimsicott into a pseudo-Funbro. You can even Encore a move that would do little damage to Whimsicott otherwise, such as Aura Sphere.
I don't find Taunt as useful. It can sometimes lead to forcing Whimsicott out, which is something I don't want to end up doing. It can prove useful on enemies trying to Whirlwind or Roar you out, or those with no attacking moves in the first place.
You could run both on Whimsicott, but then you run the risk of being Taunt bait yourself. And I don't want to invest in Speed to overcome opposing Whimsicott or Thundurus with Taunt, either. Whimsicott isn't that bulky with only HP investment alone.
/smogautism