I'm sure I should pay attention to my MTB tires but the simple fact is that I just don't. When I purchased my current mountain bike it came with tires that seem to work just fine so I just ride them. When it comes to mountain biking, I'm a fan of swoopy single track with a tacky dirt ribbon of rolling pleasure punctuated with some technical spots but I'm not out there to prove anything or risk life and limb. I've done enough of that already in this life. I have run the Schwalbe Big Apples over some single track and they are OK but are pretty close to being slicks so if any kind of bite is needed they just wash out.
For the record, I am riding Jones XR-B 29 x 2.25 on the front and WTB Nano Raptor 29 x 2.1 on the rear.
It's possible that these are simply the perfect tires for the type of riding I do as they do serve me very well but until I do more experimenting I won't know.
So there it is, more than anyone likely cared to hear from me on bike tires but I feel better for it.