It depends on the grip preference, more than the trail, in my opinion. I LOVED WTB's Velociraptors on LBH during the drought. A more hard-packed flat trail you couldn't find without going to concrete. But the corners were loose dirt on top of the hardpack, which made them sketchy with less grippy tires. I bit it when my rear tire caught the loose stuff and slid out rather than propelled. With the WTB's, I was able to keep pace, even making the turns faster in the loose dirt because of the grip.
When I switched to a 29" bike I sought out a similar tire and found some that are really overkill for any trail locally but they grip in a way I'm happy with.
Take the above with a grain of salt: I run tubes. I also go for a harder tire because I do ride my MTB on concrete and need it to last a while as well, so they're heavier as well. (Limited stable room, have to make do with 1 bike for all conditions.)
Fat girl on a bike. Duh!
Quote which means you're doing it right: Tj Lupinacci: I'm here, loop C and already endo'd and bleeding. This is great!
Quote which means you're doing it wrong: Cash Anglin: Really sucks when volunteers don't volunteer enough.