Coralife is the best. They have great service, always answer the phone and have a low faliure rate as stated above.Plus the build quality is excellent and sturdy!
Current USA is good but the company support is pretty bad. There only contact is E-mail and you are lucky if they respoond.
JBJ is Ok I heard they made improvemnets but i still do not trust there stuff.
Jebos while real cheap are just that real cheap. They have bad ballasts fake actinic bulbs and no warranty or customer support.