id go with specialized hardrock sport too... i got a hardrock too but thats not the reason. i guess RST forks isnt bad compared with the others, suntour is just garbage. the hardrock is also very popular among the entry-level mountain bikes & probably riders prefer them over the others in the same class. im pretty sure the hardrock is the lightest among them.. because it has an alluminum frame and i guess it overall weighs aroudn 30-35pounds. well good luck with your riding