My favorite is the black carp, because they always used to swim up to the docks and "greet" me when I used to go to the lake. They're so friendly! :P They usually came up to the docks 3 at a time, which makes me curious why. I think lake fish are my favorite.

But anyway, just interested to see what y'alls favorite type of fish is and why. Do most of you prefer tropical fish over freshwater?