Pro Football Focus did an analysis on deep threat WR. Passes thrown at least 20 yards downfield. Jackson was 4th in 2010 with 13 receptions of 20 yards or more. Manningham had 12. However, Ham had a higher completion percentage than Djack. 52% vs 44%. Ham was targeted 23 times against 29 for DJack.
DJack edges Ham in yards gained on deep passes 551 for DJack with Ham gaining 484. Ham has the edge of 21 yards per pass attempt vs 19 for DJack. Mario was tied for 3rd with 6 TDs. DJack didn't make the top 9. Only the Top-9 were listed with 4 TDs. Incidentally, NIcks was tied for 9th with 4 TDs.
Last season Jackson had 1056 yards with 47 receptions and 6 TDs. Manning had 60 receptions for 944 yards with 9 TDs. Jackson had a huge edge in average yards per reception 22.5 to 15.7.