With the dayton stands i like the fact with the ID of the stand i can fit my sump and out side sump skimmers and return pumps all inside and still have a little room to move stuff foward or back. Also with dayton, yes you build it but can add on stuff your self. Right now i'm building a 72x18 (pics to come) once everything is lined up and i'll be adding a shelf over my retrn pump. The guys at dayton are really good. Good quality at half the price of aga stands with a hell of a lot more room.
I was thinking of trying hollings but daytons prices beat them out. Been real happy with Dayton