[XanderO]

I know this doesn't exactly go with which you prefer, but the update from Coro Coro is (as many expected from the older Kyurem Form Speculation), Black Kyurem's ability is Teravolt and White Kyurem's ability is Turboblaze.

So those that missed the opposite Legend from their games this is like a chance to get them~

Maybe this will help some decisions on which is better.