The LaFell and Landry comparison is funny, but not off-base. In college LaFell made a ton of big catches, ran good routes, and was generally a big play possession receiver who ran good routes, blocked well, and didn't beat you with speed. Landry is a little faster, but other than that they looked pretty similar as college players. LaFell was first and second team all SEC his last two years, Landry was a second team all SEC receiver this year.
A major difference between them was who was throwing them the ball. Matt Flynn had ok accuracy and Jordan Jefferson was a running quarterback, and still LaFell caught 120 passes for 1,721 yards and 19 TDs in his final two years. Zach Mettenberger made amazing throws and has a genuine NFL arm--he made all of his receivers look pretty damn good. Landry has caught 133 passes for 1,766 yards and 15 TDs. LaFell played in a rush-oriented attack while Landry played in a Cam Cameron pro-set passing offense.
One other thing Landry did have that LaFell didn't--a number one receiver playing opposite him in OBJ.