Only reason to have a FFP scope is to be able to hold over at an intermediate power range. no idea why you would try and range at less than max power. if its that close that max power is too much, you prob don't need to "range" it with the optic. If its "close" range, you prob wouldn't dial, but then again a simple hold over will be fine, even with a SFP not at max power. as long as you have a basic understanding of what different power ranges do to the mil/moa markings.
so, with all of that, it doesn't really matter. get the scope with the best glass for the money you can spend. most of the time, that will be a SFP, but not always. if the glass is equal, then look at other things like weight, size, reticle, illum ret. those will make more of a difference in a hunting scope than SFP vs FFP, especially at 400 and in.
also, you say "hunting". what kind of hunting? big game? predator? prairie dog? also, what kind of rifle? does weight matter? I have multiple rifles for hunting. They all have a purpose that they were built for. And they all have a different optic optimized for my requirements for that rifle. I think there is a lot more to ask rather than just FFP or SFP