>>17416457252 Atk Life Orb Iron Fist Infernape Fire Punch vs. 252 HP / 0 Def Mega Mawile: 273-322 (89.8 - 105.9%) -- 43.8% chance to OHKO
vs
252 Atk Life Orb Infernape Flare Blitz vs. 252 HP / 0 Def Mega Mawile: 361-429 (118.7 - 141.1%) -- guaranteed OHKO
Know that if you don't OHKO Mega Mawile, it will OHKO in return with Play Rough.Also this:
252 Atk Life Orb Iron Fist Infernape Fire Punch vs. 252 HP / 0 Def Aegislash-Shield: 234-276 (72.2 - 85.1%) -- guaranteed 2HKO after Leftovers recovery
vs
252 Atk Life Orb Infernape Flare Blitz vs. 252 HP / 0 Def Aegislash-Shield: 307-367 (94.7 - 113.2%) -- 68.8% chance to OHKO
And this:
252 Atk Life Orb Iron Fist Infernape Fire Punch vs. 252 HP / 252+ Def Klefki: 252-299 (79.2 - 94%) -- guaranteed 2HKO after Leftovers recovery
vs
252 Atk Life Orb Infernape Flare Blitz vs. 252 HP / 252+ Def Klefki: 335-398 (105.3 - 125.1%) -- guaranteed OHKO
The moral of the story is that 1HKOs > 2HKOs
