Here are Defensive lineman, who were drafted in the first 2 rounds in the last 5 years, with arm length of 34" or more, and 33" or below
There are only a couple of 33"- that I would want on my team and only a couple of 34"+ I wouldn't want on my team. note: $ means pro bowler which 34"+ wins 9-2. The pro bowl is very subjective and by no means how talented a player is but I feel it is a good representative of 9/11=81.8% of how much more successful of longer armed d-line are can be than short armed. Longer arm people can get off blocks just so much easier. You can't teach physical traits.
Arm length 34 or higher
2013
Sheldon Richardson
Kawann Short
Ziggy Ansah
Tank Carradine
2012
Chandler Jones
Andre Branch
Fletcher Cox
Michael Brockers
2011
Nick Fairley
Phil Taylor
Aldon Smith $
J.J. Watt $$ d-mvp 12'
Robert Quinn $
Cameron Jordan $
Cameron Heyward
Muhammad Wilkerson
2010
Jason Pierre-Paul $$
Derrick Morgan
Carlos Dunlap
Jared Odrick
Torell Troup
Linval Joseph
Terrence Cody
2009
Evander Hood
Sen'Derrick Marks
Brian Orakpo $$
This year potenital 1/2 round prospects with 34"+ arms
Jadeveon Clowney
Kareem Martin
Chris Smith
Marcus Smith
Stephon Tuitt
Ra'Shede Hageman
Kony Ealy
Arm length 33 or lower
2013
Sharrif Floyd
Johnathan Hankins
Datone Jones
2012
Shea McClellin
Nick Perry
Courtney Upshaw
Vinny Curry
Dontari Poe $
Jerel Worthy
2011
Marvin Austin
Stephen Paea
Brooks Reed
2010
Tyson Alualu
Brian Price
Lamarr Houston
2009
B.J. Raji $
Peria Jerry
Ron Brace
Larry English
David Veikune
Robert Ayers
This year potenital 1/2 round prospects
Jeremiah Attaochu
Scott Crichton
Dee Ford
Aaron Donald
Timmy Jernigan
Ego Ferguson
Louis Nix
Will Sutton
Dominique Easley