In a similar vein, Waffle Pool is smaller (and thus less dangerous for network health), and is also a coin-hopping profit-focused pool. It is different (I think) in that it always mines multiple coins simultaneously, in order to prevent huge changes in the market based on what a big pool is mining. Since a big pool like Multipool can effectively move the market for smaller altcoins, it's probably useful to spread the hashing love around a little.

It does, however, pay out in Bitcoin only. So, if you're wanting to mine Doge and hold them, it's not the right choice. I have a Multipool miner running and I keep some of the proceeds in the coins that result; though I mostly sell the also-ran coins (anything that has nothing significant to differentiate it from Bitcoin) and trade them in for Bitcoin or Peercoin. I keep some Doge, however.