You somehow missed tompool.org, and it's the best. 1 minute switching speed configurable, vardiff or manual diff, huge selection of coins. New ones added frequently if they are on a major exchange. Completey configurable multipool where you can exclude coins you don't like. MPOS so it works great with any of the API scanning pool monitors for Android and iOS, and unlike most pools, Tom is actually there a lot so broken things actually get fixed unlike say, every single other multipool. He also upgrades the hardware frequently. There isn't a better scrypt or sha256 multipool. Megamultipool tried to copy tompool, and while decent, it's simply not as good.