I would suggest Mitras
Radions, AI and Mitras are all proven to work but Mitras are the most stable LED system out there with everything that other fixtures come up with gradually through new models. If you don't want to invest in a LED system and only to find a new one came out in couple of months, Mitras are the way to go. And I am sure the owners will also say so. Plus they have much better coverage (upto 40") while AI are upto 24" and Radions are upto 30".