hey cap
I am the queen of baby carriers :P I have a hugabub, a baby bjorn, a bubba moe and an ergo. My favourites by far are the hugabub for when they're little, and the ergo for when they're bigger - probably post sitting up. I never shop without E in the sling. A is easier to control if I have both hands free, and the hugabub gives me that. I used the bjorn quite a bit with A and it's fine, although the weight distribution makes it less comfortable than the hugabub. Saying that, I am thinking of giving E a go in it now she's a bit bigger because it gives them more freedom to move. If I want her to sleep the hugabub is great but the bjorn is easier to put on and has advantages if they're awake. I don't like the bubba moe at all. I can't seem to make if comfortable for either of us, so am glad it was only a $5 garage sale pick up.

Hope this helps!