Having gone up against all the FotM 14 hunters throughout cata as a 10 I can say that although 10s and 14s have different strengths, I ALWAYS HELD MY OWN. Its maybe even more so today, 10s get more benefit from haste, crit, dodge, and their CDs such as lifeblood are worth much more since the haste is scaled up and the heal almost always crits on a 10. Pots always crit as well. With bandages being as crazy as they are now and all of your other options for kiting, los, pet control, using OOC regen, 10 hunters are far and above better than 14s unless you plan to disengage exploit up onto walls or something like that.