What brand of fluid?

This is one of those questions that gets many different answers. So many different poeple and manufactures have different preferences that sometimes I wonder if it really matters what type of fluid you run. I use type F out of habit, because it is cheap, and because i'm getting several hundred runs out of the clutches in my home built transmissions. I know other racers that are using everything else there is,+3,+4, dexron,expensive racing stuff. Is there really a "right" answer?