More so frames than parts for me.
Kawasaki green Santa Cruz V10.3 Still the best looking DH frame ever made.
Occasionally I regret selling my Banshee Sirocco because it was cool AND had 4 pot XT brakes with stainless braided hoses and an Aireal rear hub. Aireal was a small brand here in Australia that produced some sweet hubs and ok chainguides but went bust after a few years.
Both GT LTS I've owned- a '98 3000ds and a 96 DH "boomerang"
BTW Andrew, I still have the Chromag direct mount stem you sold me in 2010. It's now on an autographed Syndicate V10.4 that enjoys a wonderful retirement in my bike room. That bike is never leaving me!!