I love the Vibram "plastic". Love the feel and durability of it. I don't like any of the discs though. None of them do anything for me.
I don't see much buzz about Millennium. I scour for all the used JLS I can find (I just bought out disc nations stash). They fly great and reliable for me, and can be found really cheap, so they're good for "I think I may loose my disc here" shots.
Gateway seems to be a one hit wonder. Tons of guys throwing wizards, and not much else of their stuff. Nobody really seems excited about legacy. Prior to the name "Trilogy", most around here seemed largely unaware of Westside. Everybody loves the look of mvp, but nobody throws it.
Both Prodigy and DD seemed to shoot up to absurd levels of popularity from nowhere.