ofer:
Actually... no one can! It's really a personal preference. I love the support and quality of Zeagle products myself. But the next poster may go the other way!
I will tell you that the Brigade is set up for just single tanks. It has the grommets for duals, but the bladder is a single instead of a dual tank bladder - so if you plan on doing duals, you may have to go ranger instead of brigade if doing zeagle. And you can swap between the bladders, so if you want, you can also get a brigade, then add a larger dual tank bladder later on.
