While I have no experience with the Kessil 360, I do have to A160s and have 0 complaints about them. They produce some absolutely amazing colors and growth in the corals and they have the sleekest design on the market in my opinion. There is also the huge upside of how much less they cost than radaions but here is the thing, when it comes down to it all three lights you listed will do exactly what they were designed for, you will find lots people who use them on their tanks and love them. It really comes down to how much you want to spend and what features you like best.
