CBS Sports: Washington St. SS Deone Bucannon, VT CB Kyle Fuller, OSU LB Ryan Shazier.
ESPN: Oklahoma St. CB Justin Gilbert, Alabama ILB C.J. Mosley. Rob Demovsky's post also links to a couple other sites who chose Washington TE Austin Seferian-Jenkins (1st round seems too early for him) and Michigan State CB Darqueze Dennard (who could be a Top 10 pick).
Journal Sentinel: C.J. Mosley.
SB Nation: Two more picks for C.J. Mosley.
If you noticed a strong Ryan Shazier/C.J. Mosley vibe, you're not alone. No one seems to expect either of the top two safeties (HaHa Clinton Dix or Calvin Pryor) to be available when the Packers are on the clock, so a couple of authors think the Packers will draft the best available cornerback (Dennard, Gilbert or Fuller) instead. Assuming TE Eric Ebron is long gone, in addition to Clinton Dix and Pryor, there are a couple of reach selections at safety and tight end, which doesn't seem like a good idea.
In general, there are a couple of constants. First, the various mock drafts are consistent in their inconsistency. I think we'll be surprised by a couple of the players who will still be available at No. 21 for the Packers. Hopefully it'll be one of the quarterbacks, which might make it possible for the Packers to trade down. Also, there shouldn't be a big run on linebackers until the end of the 1st round, so most mock drafts expect that two of the best (Mosley and Shazier) will still be available. Selecting either of them makes the most sense if the Packers are standing pat.
I read multiple stories this offseason about how LB Brad Jones struggled last season and was inconsistent. Maybe the local beat reporters can tell that linebacker is a position the team knows it has to address. Since they didn't add anyone new in free agency, that help would have to come from the draft. Safety is another obvious area that needs improvement, and without an incumbent starter after the release of M.D. Jennings, but the value doesn't seem to be there at the No. 21. I would expect one of those linebackers will be selection, unless the opportunity to trade down with a quarterback needy team presents itself.