Looks like the Rem 870 gets the vote. But Like someone else said you don' t need 3 1/2" capacity 2 3/4 will get any job done that needs doing,and will certainly save your shoulder some pain that you' ll fee when you get older. Check the velocity on this chart the 2 3/4 out perfoms the 3" and the 3 1/2"
http://www.remington.com/ammo/shotshell/exp_bucksh.htm