I've never been able to break away from using Metagross/Zapdos/Scizor/Latias. At the VERY least, Scizor and Latias. However, this means it's showing it's age... For one thing, I am unsure how to deal with Rotom-Appliances. They handle Metagross, Machamp, Scizor, and Celebi pretty damn well...