I actually haven't made a list. I'm doing exactly what you are....finding flaws in everyone elses'. Hahaha.
Not really flaws per se. I do think McGee is the better pick over Lofton. Let me explain.
Lofton started his career the first year of the 5 yard rule. You can't touch a WR after the first 5 yards. While his numbers are good I look at him as just below elite WR's. Those being guys like Hutson, Rice, Moss, TO. Here's why. The Pass/TD ratio. While not being the only figure, it is important. And it's important to note that Hutson and McGee did it while getting mugged going down the field. I can't imagine what kind of figures they would have in today's pass happy, WR friendly NFL. So that's my case for McGee over Lofton.
Hutson. 1 TD per 4.9 catches
Moss. 1 TD per 6.3 Catches
Rice. 1 TD per 7.9 Catches
Owens. 1 TD per 7.0 Catches
Lofton. 1 TD per 10.2 Catches. (10.8 with the Packers)
McGee. 1 TD per 6.9 Catches.
Now, to Starr/Favre. Starr hands down. No if's and's or buts. Brett has been good, Bart had the advantage of a smaller league, but, you can't beat the numbers he put up on a regular basis.