I prefer triple, because I'm probably double battles biggest fan haha. Rotation is fun too, but I dislike the fact that I have three Pokemon on the field and can't use them as collaboratively as I can in a triple or double battle. But both are very enjoyable and add to the series, I think. However, I was disappointed with how they were hyped up and there are only a few in the game. But then thinking back to Ruby and Sapphire when double battles were introduced, there weren't a lot of them either. In Emerald, they were EVERYWHERE. You had the ones from RS still there, the ones you walked into, gyms designed specifically to trigger them, and even gym leader rematches that were double battles. They shoved it in your face, which I personally love, but I'm sure most fans didn't like. So what I hope to find in Grey is that we have more triple battles. I'd LOVE to walk between three people and trigger one honestly. I know I hated in Emerald where you could walk between three people and only trigger a double...lol See, I was wanting triple battles before generation IV was even here, let alone V!