Where's the love for Fire Punch, for Ferrothorn in particular? Sure, you're still taking 2 Iron Barb hits (and 2 Rocky Helmets possibly), but the OHKO is valuable and is often needed to proceed to sweep. I've had plenty of success with Return/Power Up Punch/Sucker Punch/Fire Punch and very rarely needed Earthquake, though Crunch admittedly would be nice for the rare ghosts in this metagame. Speaking of Sucker Punch, I've found it it incredibly useful against Scarfers or base 101s+ who try to revenge kill it when I'm at +2. I honestly think it's 100% needed.