Ice is what I use too, but may be playing through White again and was wondering if a Timid HP Flying one is worth RNGing, or if I should go with a Calm (bulky) one. For that matter, what nature and Hidden Power (if applicable) do you expect to be the best for Thundurus-T? Tornadus-T?
I was told that people are using bulky spreads on Thundurus nowadays... do you have an example of a typical one? I thought they were all pretty much 252 SpA / 252 Spe... that's all that's listed in the analysis except for an alternate EV spread on the Rain Support set.