Here you can find most profitable pool: bitcoinchain.com/pools
these pools are by # of blocks found and have nothing to do with profitability.
They are mostly Chinese pools so if you are mining from other countries I would not use largest by size. I am a newbie but this list does not make sense to me.
Just because a pool finds the most blocks doesn't mean it is the most profitable pool. There are many other factors that go into determining what pool is the most profitable for individual miners.
My research shows that the Kano/CK pool is the most profitable for it's members.
Do your own research.
Good luck and best wishes!