Dicta, only because the pos SS freewheel was damaged receiving the bike. Figured it was an installation issue. The only way that no name brand cheapie was coming off was that the LBS was going to crush it in a vice. The Dicta is a 16T and what they had on hand for bmx bikes they used them on. I think it was like $ 15 or so installed and the freewheel itself was $ 12-13 or so. Nothing special, but it's held up. I understand the difference is how many pawls they have designed inside them. The Dicta I have has 4 and is sealed while other more expensive ones have 6 and are fully sericeable ? The junk that was replaced had only 2 pawls. I guess when they work there isn't too much a difference in smoothness, but noticeable enough and when they gum up and stick, well, that sucks.
These 2 brands, Echo & Viper has 9 pawls inside:
http://www.biketrialstation.com/echo/fwti.jpg
http://www.biketrialstation.com/viper/fw1.jpg
Some of these would be "Other" for the poll.
http://www.biketrialstation.com/fw.html