You are pretty much always partial to the one you have, and mine would be my Giant Gourami. The cool thing about him is, he has no interest at all in small fish. I have Cory's, Rainbowfish, and some tiger barbs, and he could care less.
in fish i have, my fave has got to be my rainbow darter pair, theyre monster
they are so full of personality, come up to the glass when i sit down, they sit on my plants, the are very active (unlike you bastads all said when i first got em)