This is one where you will get such hugely differing opinions. My vote is the BB, but make sure you get the "active" one that gives you more support. I tried a friend's HAB and found it very cumbersome to use and both DD and I got very hot - I was wrapped in so many layers of fabric it was just ridiculous. I also have just a cheap "ring" sling which I used a lot when DD was very little - great for throwing her into in the afternoons for a nap and getting the dinner started. I still use both the BB and the sling a lot now but for different reasons - the BB for shopping and the sling for around the house if she's fussy.