Alex Smith seems like the safest pick. Atlanta's secondary has been garbage with their 2 top safeties out Flacco... could also be a solid choice.. but my mental block on him is pretty strong after all these years of being shitty. Carr is another option based on how bad SF DST is.
The Vegas Odds for all there of those QB's are pretty much the same. At this point it's up to you. Which one do you think will do best out of those three? I got them all pretty darn close.