You're gonna get 6,000 opinions of hard tail versus full susp versus 27.5 versus 29er versus aluminum versus carbon. BUT:
I have an older S-works Epic 29er
RockShox Sidi XX World Cup fork
A mix of XX1 and GX components, and a Rotor 3D SRM that I converted to 1x by taking off the outer ring. It looks goofy.
Wheels currently are mismatched, hand built but I honestly forget what rims. Having some ultra light ones built up before Utah at the moment though.
In a size XL, this all comes out to 21.5 lbs with cages, no flat kit or bottles. I wish it were lighter but oh well.
IG: idking90