BB is great if you are needing the turbo to be more responsive, such as between shifts. It's also nice because they are lower maintenance and require less oil to run. They are pricey as hell to over haul, but meh. The interval probably makes it worth it.
For a daily driver, I can't imagine you would really notice the difference between BB and JB turbos. May be worth sticking with JB and saving a ton of cash. Just something to think about.