You can't drop James Jones based on what the Packers have said about him coming out of training camp. Nor can you drop Gonzalez because not only is Peyton Manning throwing to him, but in a few years when Marvin finally decides to retire, he will be a starter with Peyton Manning throwing to him.
Williams and Jacoby Jones are the two you should consider because their offenses are not stellar. Personally, I think it depends on personal preference as to which of the two is better, because Jacoby has a better opposite wide receiver, but the offense he has around him is arguably worse, and Williams has shown some talent at the elite level already. I like Willams' chances this year more than Jacoby's though.
Kudos to Leber
for the amazing sig and to Metroid
for the userbar and making them both fit
2008 and 2009 Defunct Dynasty League Champion