it depends on the market.. today NH is paying right at .00122 and zpool is at .0019...
NH has 3% fee and zpool is 2%..
you can keep track of the pools here
http://poolpicker.eu/table?algo=sha-256
keep in mind, yesterdays payout is not guaranteed to be todays payout..
but you can clearly see NH is usually on the bottom of those pools.
zpool and nh you can set the diff with a d= in the password.
you can try d=128 or d=64