I will chime in that I love Pigs, but they do not meet the original criteria of being in premium plastic (other than the small run of blizzard ones done a few years ago, but those flew like turds to me). However, the Pig is beefy enough that you can throw it for years before it starts to really season, so durability is really not a concern. A big difference I find between something baseline like a Pig and premium plastic options like a Zone or Gator is that you get a lot more skips out of the premium discs whereas my Pigs tend to hit and stick much more (they're not completely skip-less of course but less skippy than a Z Zone). If you like playing a skip on your upshots, then Zones are great, but I think I get closer to the basket more reliably if I'm trying to stick it right there without worrying about a big skip. Of course there are baseline versions of the Zone or Harp or whatever too, but that is something to consider.
