Dunno.

1). Have you tried playing it?  Best way to find out.
2). What do you think?  Second best way to find out is to do some analysis.  Play through Topalov-Adams and other relevant games and make a note of any move you don't understand and list alternatives.
3). Compare 16...Rb8, 16...Bd7, and 16...Bb7.  Determine for yourself which seems to offer positions you find most interesting and attractive.  More to the point, work out the point behind each of these moves (and the moves leading up to these): that should allow you develop a deeper understanding of the position.
4). Theory changes with the introduction of each new idea.  There's little point asking which of these lines is best; the better question is to decide which makes the most sense to you.  No one can answer that question for you.