OP, I had these set up last year.
1- 48" 6x54w ATI Sunpower and RB Tech version in actinic
2- 48" 6x54w ATI Sunpower and RB Tech version in actinic and two Kessils A350W
3- 48" 6x54w ATI Sunpower and two Kessils A350W
I liked the cleaned look of both ATI Sunpower and RB LED better. If you are looking for a clean and aesthetic set up, The ATI and RB is a good combo to go.