I voted for Jumbo, but it was a hard decision. They are all flipping awesome in different ways. XR summed it up in the first post.
Maybe I'll get a good pic of my twelve incher, "Tiny". I don't think he's quite in the same class as these, but he's pretty awesome too. If my nine inch male was as big as the others in this thread, he might have a shot at the title. He's got an awful lot of purple on his sides and a lot of blue in his fins. I'll try to get some decent pics up soon.
And thanks, XR, for starting this thread. I'm a relative newcomer to MFK and hadn't seen a couple of these fishes. And another thanks is in order for the keepers of these awesome fishes. They have obviously taken a lot of time and care to raise such awesome specimens.