I don't think its about which clan is better honestly, its about play style. Uppers are really good with PC, the combination of high power/damage cards with great attack manipulation is awesome. The amount of SOA you can play is really nice also. You can still do a PC split with clans other than life gain . Personally I don't like life gain, I would rather end the game with a KO or play defense the whole time with SOA and reduce with PC. If you make a split, and then dictate what each clan does in that deck separately and give each card a "job" to do you really limit yourself.