User blog comment:Dmurray1031/Whitebeard vs. Shanks (both full strength)/@comment-3425840-20110421040235

It is certainly White Beard, why? Well they both have all sorts of Haki so they are even in that term. As for Devil fruit powers, White Beard has a pretty powerful one but Shanks has none. Which gives White Beard an edge, besides physically it appears that White Beards sheer size and Brawn makes him stronger than Shanks. Also the old man is more experienced than Shanks. It will be a close match though.