Event/Blissey(powerup)/Chansey(evolve)?
So I evolved my first Blissey last week (15/14/10 - 86.7%), and it is level 20. Just hatched a level 20 Chansey (14/15/13 - 93.3%) with 25 candies. Should i use those candies, and this event to powerup the Blissey, of evolve the Chansey? I don't think I'll have the opportunity to use this event to it's full potential, pretty busy, so the candy i get will probably be one or the other, with some to spare.
Answers
It's the way that CP is calculated. Blissey's massive base stamina stat and comparatively weaker base attack stat results in the attack IV having a much bigger impact on CP than the other two stats. In short, your Blissey with perfect attack IVs will likely have a higher CP than another Blissey with lower attack IVs but perfect Defense/HP. More concretely, every attack IV will contribute like 70 CP, but every defense or HP IV will be only half that or less (Math is not accurate, but it illustrates the point)