No, there wont be much difference in HP if all other variables are identical the torque on the other hand will be a tad higher at least that's what I've gathered after reading a ton this subject.
I think the drivability is the main deciding factor, if that is a concern, I.E.> cold starts and incliment weather driving.
And of course theres the extra money involved to go F.I>
Just my take, Cp.