Not a huge difference between the various models, they all share the same frame. Essentially the only differences is the fork….with brakes, drivetrain etc being very much a personal choice and something people often change when they get the bike anyway.
I bought the frame only option and ran it with a 150mm Revelation initially, it was great…I then bought a 160mm Pike and it is great, not a huge difference as far as I can feel…better riders may disagree, the Pike purchase was a vanity thing!
It’s a versatile frame, it can be run with or without front mech, takes 203mm brakes, 140-160 forks, 200×51 or 200×57 shock for 140mm or 158mm rear travel, 135 x 10mm axle or 142 x 12mm axle…easily the best bike I’ve ridden.
I’d like to get to the point where I have 160mm forks and a long shock on standby for big days out, uplifts etc and then run it for most of the time at 140mm both ends for more trail based riding.