Generation IV introduced a trio of Psychic-type Legendary Pokemon, each inhabiting a small cave in one of Sinnoh's large lakes. Which one do you like the best? Please remember not to spam and explain your choice a little.
I'll go with Azelf, for its high Speed and attacking stats and the fact it represents willpower. Mesprit is good, too, but it is slow, and Uxie is my least favourite as I dislike its head shape and its lack of attacking stats.