Of the list, I have to go with the Buzzz SS. I think think it's a super underated disc. I'm not 100% in love with the hand feel, but the results are amazing. Straight, just the slightest amount of high speed turn (you have to pay attention) and minimal fade. Can be shot low on a rope between the trees and under the leaves. Out-distances my regular Buzzz and can take enough power to replace my straight fairway driver role (previously filled by a Stalker).
X Buzzz out of the box in nicer plastic? Yes please!
My one disappointment is it doesn't do as well as a Meteor on a downhill shot. Maybe that's a good thing as I love my Metoer, but it would have been nice to combine those shots into one disc.
Simply put, if I were placing a one disc round... this disc would be it. There are other discs that do their job better than the Buzzz SS but none can do as much as well. Jack of all trades, master of one.