I had a pass to both last year.  They both are the same driving distance for me so that wasn't a factor.  Looking back, I think I enjoyed riding Bear more.  They seem to have more variety of terrain and the park just seems to flow better.  Mt High I feel like somebody threw a jib grenade on the mountain and they're jibs everywhere, although they do have some sick features.  As for the jumps, I did like Mt highs Triple Air line on Chisolm.  It's super smooth and is the main reason I'd go back to High. But for me, Bear just is funner to ride, has the beach bar to drink at, and the terrain just seem more open and flowing when you ride. Plus there's hotter chicks at Bear.