Okay...more fun in the world of the damage formula! First things first, the simple part: I think 4x effective moves are...well, not 4x effective!
Level 68 Gliscor Stone Edge vs 206 def Yanmega:
227, 212, 220, 212, 220, 240, 220, 220, 216, 212, 232, 240, 232, 237, 245, 220
Aerial Ace vs 206...