I have both, but prefer the Traveler most of the time. The BB shelf is pretty cool, and I sometimes miss it when in the traveler. One big downside for me on the BB is that it's harder to reach stuff and adjust quilts on the non-zipper side. If you do get the BB and plan to winter camp, I really recommend the Bear Burrito Oven top cover form Arrowhead Equipment.
“If people don't occasionally walk away from you shaking their heads, you're doing something wrong.”
― John Gierach