From browsing the Wildwood site (they measure all the necks), the depth of Pattern Regular is around .84-.85" and the Pattern Vintage is .88-.89" at the first fret. .95 and .97"-ish at the 12th fret, respectively. Regular also is 32nd of an inch narrower at the nut compared to Vintage.
The Regular is definitely a little easier to get my hand around, but it doesn't feel particularly small in comparison to Vintage. I notice less of a difference between Vintage and Wide Fat. I get around equally well on all three, but I think they added the extra meat on Vintage in all the right places to fit my hand just right. I think since it's asymmetrical, it doesn't feel as big as a C profile neck of the same depth.