From my limited experience i agree the geomtry plays a huge part in all this but in terms of durablity Turner bushings are the best, my wife has a ten year old turner xce and has changed the busings once, it was her only bike for all this time.
Stiffness for my my current bike a titus supermoto is the best tracking bike I have had .It ia a horst link and heavy but is incredible stiff and true. Big addition to the development of mtb riding is the bolt thru forks regardless the titus is the best for me.
Brake jack after I had a bullit I avoided single pivots for years but recently rode a yeti asr-sl great suspension feel for 3.9 inches of travel but I did not get on with the geomtry. No brake jack as such on the yeti. Chris Porter at Mojo suspension does not think it exists and maybe it is a bit if hype.
Personally the suspension designs, that have worked best for me have been horstlinks and the Giant Maestro system but there were issues on bearings there, so, in my very slow climbing i can do but descending i need lots of help with, Horst link bikes win especially if they can with turner grease port bushings.