I signed in, just to like this post. This was in my opinion, the most difficult catch I've ever seen. The OBJ catch was special, But all things considered (against PATS, tipped ball, twist your body, secure the catch, tap 2 feet in for a TD catch) this Marvin catch was just amazing, and reminds me of what every little kid tries to do while playing backyard football.
BTW I truly believe that the hardest record that will probably never be broken, is his 143 catches in one season 02'. Second closest is AB/JJones with 136 in 15'.
1) The WR has to know how to catch
2) Your QB has to at least be decent