Rows 17 and 18 exit rows on the 767 have only slightly more legroom. Not as much as in the exit rows on the 737. Row 17 is a bulkhead seat (behind a washroom) so the legroom is restricted (similar legroom as in the bulkhead on the 736) but doesn't recline because of being in front of the other exit row (18). Best seats with legroom and recline are the Plus seats! Hope that helps!