I got a bubba moe when DS was super clingy around 14 months - and I thought it was pretty good. It does pull on your shoulder after a while though, and newborns seem to get lost in it - Miss M hated it. She doesn't mind it now, but its not really a hands free carrier so I barely use it.

I have an ergo which is fab for both kids and have a close carrier for the new bub. Neither of these pull on your shoulders and they don't hurt my back (I have a bad back).