Jason Peters, Philadelphia Eagles
One of the most underrated left tackles of the past two decades, Jason Peters of the Philadelphia Eagles came into the NFL as an undrafted free agent tight end, and turned into a nine-time Pro Bowl selection at tackle. He started out as a member of the Buffalo Bills, where he won the job at right tackle, then moved over to the left side, and eventually was named a second-team All-Pro. He was traded to the Philadelphia Eagles in 2009, after which he was named a First-Team All-Pro three times in his career. In an era with so many stud tight ends, Peters has been as consistently great as anyone.