I've crawled all over them both about a half dozen times.
I think they are an even matched comparison, but I'd give a slight nod to Cape Horn because I like the overbuilt strenght and I think it has more usable room, and I would be tickled pink with the mckee
I'd test ride both, tour the factory if you can.
flip a coin or let the price guide you?
I see in the other thread a spat about stainless fittings.
I have seen rust drools from fittings on Capes also, but it was on older models and the stain on the gelcoat appeared to be leaking from the thru bolted portion, the fitting was not corroded.
I would not let that nonsense sway my decision....Mckee has a top notch reputation as does Cape Horn...
Hurry up and decide Johnnie........