I have been researching this a lot lately as well. I have the banana brakes on my birel and I recently bought a tony chassis. I hate the otk brakes. Hate them. Some people like less braking power and more modulation. The brakes are so different that the braking points are totally different and I can’t get use to it. I recent bought a banana brake set up to throw on the otk (with a lot of modifications).
Just depends on what people like. If you like powerful braking, people say the banana brakes are the best ones ever made (from the research I have done).