I'd make the recommendation that you try them all and pick the one that works best with your hardware. Cross reference these wiki pages: https://en.bitcoin.it/wiki/Mining_hardware_comparison and https://de.bitcoin.it/wiki/Mining_hardware#Nvidia
You can see what hash rates people are getting for similar hardware. Some entries also have some of the command line arguments for the different miners you can try too.

Don't forget to be aware of your power consumption. Unfortunately Nvidia hardware isn't the most efficient for mining bitcoin.