So Druids are the best multitaskers in-game, with our ability to preform four roles with only 3 "specs". However, when it comes down to it, how many of these tasks would you actually be capable of doing if you had the gear and were asked? Personally, I leveled as Balance and that's always been my main spec, but as of late I've taken up tanking so I think I know that part of Druidism pretty well. Cat not so much, but I know the basic ideas of what I "should" be doing. I only ever went Resto once to help some guildies finish a Heroic, so while I'm sure I could WG spam with the best of them I certainly wouldn't consider myself good at it.
Also, I think it's a shame some people may only know how to play one facet of their class. The whole point of hybrids is you have the option to do something other than dps, so if you only ever dps (something I was once guilty of) you might as well go roll a mage/rogue/etc. (Of course there's the argument that you don't like those playstyles. :P)
For the poll I decided if you know Kitty PvP spec and Kitty PvE spec they still both use the same mechanics and general talents, so it's really just balance/cat/bear/resto. (bear pvp XD)