Both are nice. I prefer the tone of a bass clarinet, it's just incredibly relaxing and melodious, but that instrument just has the (huge) inconvenient of not being able to play at high dynamics (at least not as loud as most other isntruments)...
I play both, and if you ask me, the bass clarinet isn't always too soft. I haven't been yelled at too often for playing too soft.
I prefer the bari sax, mostly because it's new to me, since I just started it this year. It's a nice change from the bass clarinet. It's got such an amazing sound in the low notes...
i'd disagree that bari is more versatile than bass clarinet.
plus, bass clarinet has twice the range. (ish)
and is rather easier to transport (spoken as someone who played both bass clarinet and bari in the pit orchestra for one show- getting both down to the theater every day was certainly fun)
not that i dislike bari or anything. its really fun. i just like bass clarinet better.
ok i played clarinet for 2 yrs and tryed playin the bass clarinet i absolutely hated it so when i moved i started playin the sax and then switched to the bari sax and totally loved it cuz it has an awesome sound so the bari is way better then the bass clarinet