feel like reviving this thread. it always ends up amusing.
so id like to change my stance on the superiority of the Roc. i used to think that the Roc was more versatile based on how it beats in but now having thrown many of the different buzzzes out there i would say the Roc is lacking.
First, the biggest difference between these two is the height each needs to achieve 'x' distance. the Roc needs a considerable amount more height to make the same distance as a buzzz. and on low lines you have to put a lil extra on a Roc to make sure it can make the distance.
Second, the beat-in or wear stages of both are actually very comparable. both start out stable to slightly overstable and beat into turnover discs (the Roc takes a lil more time). the only real difference is that the base plastic of the rocs hole a overstable line and have a beater wear pattern to them.
third, plastic availability. the Buzzz is available in all but one plastic standard (cryZtal). the Roc is available in only 2 (4or5 if you include those garbage non-rancho molds). and the plastic is wear i think the buzzz ultimately wins. as you go 'up' in plastic the buzzz holds a more and more stable HSS and gains more LSS. so if you want to get a more stable version of the buzzz you have you can go to almost any store and pick one up. however, if you want a premium Roc you gotta pay some ridiculous price for it.
fourth, how well they respond to the wind and elements. this is really the only spot i think the Roc still holds its ground, and not by much. a flat top buzzz in any of the premium plastics will hold its line in any of the same wind conditions a Roc would. unfortunately the base plastic buzzzes do not.
fifth, this could either the most important or the least, their one disc only capabilities. if you were going to play with only 1 single disc (not mold) which would yield you the best results over time. the roc has the advantage as far as weather factors and the buzzz has the edge in distance capabilities. both are very workable in the putter, mid, and driver categories.
so for me...now, i would say the buzzz is best. it is cheaper and has more variety in the single mold then the rancho Roc. if i were to buy a D/DX, Pro/X, ESP/Star, and a Champ/Z version of each disc my costs would be something like this; Buzzz $45.46 and Rancho Roc $67.48 (DGCR prices and USDGC rocs at $25 each) thats a big price difference.