Water types. Yes, water. Most of them are cute, and also a few good legendaries like Keldeo and Palkia are Water types. So, I love 'em. I just don't know why, but I prefer them. They also have only two weaknesses as compared to three good-to-the-core advantages, so, yeah. Besides, there are also a few cool moves for water types, and there is no TM for Hydro Pump, so I always found them precious.