So I hate to near thread, but what's yalls consensus? Attempt more crits early on and go for toughness or go for raw dmg and hp? Unarmed using power armor and fist?

Lol, no consensus but that's a good thing IMO. Meaning lots of choices are good ones.
Well except for that the *gifted* trait is the best one to pick, in general.

But generally:

Fully unarmed: the criticals are the main thing.
Spiked knuckles and power fists: the criticals are not *that* important.

Both ways benefit from bonus move, faster hand to hand attacks, action boy, living anatomy and whatever.
You have to pick and choose.

I wouldn't consider *more hth damage* to be very effective way to spend the feat, though some might disagree.
Couple of points here or there just doesn't seem that big a deal.