I have a choice of 3 bikes, all in the same price range. Which is a better Buy? GT Avalanche Expert<?: prefix = o ns = "urn:schemas-microsoft-com:office:office" /> Parts ? SRAM X9 parts, Rockshox Tora fork, Juicy 3 H/D brakes Specialized Rockhopper Parts ? Shimano Deore/ LX, Rockshox Duke fork, Juicy 5 H/D brakes Trek 4900 Parts ? Shimano Deore/LX parts, Rockshox Pilot fork, Hayes H/D brakes