Depends more on the rider, IMO...the bigger wheel rolls over stuff easier/better/sexier, but is slower to accelerate and (arguably) is more prone to bump-steer; the 26 is stronger, faster to accelerate, and less prone to bump-steer, but is slower/needs more effort to climb. All of that can be 'adjusted' by the person on the bike. If I could have one of each, I'd do a geared 26 and a SS 29...I'd use the 29 on smoother, faster trails, fire roads, etc and the 26 on the seriously technical stuff and rides with a lot of grinder climbs.
Oh please don't remind me...I'd need to replace EVERYTHING but my poles and there's just NO way I can afford to do that.
Hmm. Definitely some food for thought. Thanks. I was just thinking better better better. I'll keep this in mind. Thanks.