I was in the same boat a few months ago. Had 2 bikes stolen, and was looking for a trail bike and an enduro bike. I had a XC bike (Scalpel) but wanted something I could race on occasion (2016 was my first year racing), but a good Bay Area bike. Looked at Tallboy, Intense Spider, Mojo 3, and Ripley LS. Rode all four, eliminated Tallboy, then had a real hard time between Spider, Ripley, and Mojo 3.
Came down to the Ripley LS due to:
1. Ripley was perfect for Downiville XC fire road Climb, and the descent with all the baby heads. 29 really smoothes it out.
2. I don't ride a lot of super tight trails. Annadel is my favorite, and riding and climbing over rocky terrain is just easier on the Ripley. If you ride more tight stuff either Ripley or Mojo 3 are better climbing switchbacks than the LS. Mojo accelerates out of turns better.
3. If your interested in racing at all, even an odd Sea Otter or Downieville race, Ripley LS fits the bill.
4. I would say Ripley climbs flowy uphills better generally, however, except tight technical trails, which I give a slight edge to the Mojo.
The bigger difference is how they descend. Ripley rides flowy downhill better, but the Mojo 3 Rides tech downhill much better.
10 Perfect , 1 Garbage
Flowy Climbing
Ripley LS 9, Mojo 3 8.5
Tech Climbing
Ripley LS 8.5 Mojo 3 9
Flowy Descending
Ripley LS 9.5, Mojo 3 8.5
Technical Descending
Ripley LS 8, Mojo 3 9.5.
Best thing is you'll love either bike. If I wasn't racing, I probably have gotten the Mojo 3. I like more BMX bikes, but with low bottom bracket, and a wheel upgrade, LS was too fun to pass up.
Is this your only bike?