important question (my 2 cents): are you going to get the knives brand new or used?
I got an 801 off of the exchange here a week ago and ordered a 2nd new 801 fresh from amazon which was waiting at home for me after work today. There is a crazy world of difference between the two, my second hand 801's detent is fairly weak and I couldn't tighten it (do some searching and you'll see a common problem with the stonewash ones have pivots that spin, you have to add locktite). My new 801 is ridiculous it fires out like a missile and the action is so crisp compared to the second hand.
I have no experience with the reates (although I'm lusting after the horizon B with the texturing on the handle) but I can wholeheartedly, unequivocally recommend the 801 as long as you buy new with a stiff detent. And I would go for either the blackwash or blackout 801, I hear that zt resolved the spinning, nonadjustable pivot issue with the 1st generation regular stonewashed ones.
Supposedly different elmax heat-treated steel between 1st Gen vs blackwash/blackout versions so the newer obest allegedly have better edge retention? Can't comment on this firsthand bc I haven't had to sharpen mine yet.