racials are only worth it if your going for world first kills. even if your doing heroics raids its still not worth it imo. so pick the race you like
Dunno man, I see what ur saying but I'd love to have a Troll's berserking, it'd align perfectly with INC+CA
But according to wrathcalcs the dps increase from Worgen to Troll is minimal (0.5k dps), however, from anything else (Tauren/N Elf) it was a little more (1.5k difference).
I had the same dileema awhile back, and I ended up race changing my druid from Worgen to night elf. The DPS increase is negligible and I got sick of seeing the stupidly awkward Worgen female model (I'm a woman and I almost made my first male character, a Worgen male, because the I hate how unfinished and amateurish the females look).
The troll racial is a big buff, but that damage only really effects your Burst rotation, and your CD usage. The Worgen's 1% passive crit doesn't have a CD or uptime, so the damage is relatively close. If you want to maximize your potential damage, go Worgen or Troll, but unless you are pushing content, the damage is negligible.