Not a fair comparison, but I have a 5 x 25 Mark 5 and the 4.5 x 18 LRHSi . To me the Leupold is clearly better, optically , turrets, and features. Tracking is a tie with both spot on to 10 mils { thats as far as I've tested }.
I have a 16" Faxon Gunner profile barrel on one of my uppers. Pretty light and shoots under an inch at 50yds ( as far as I can shoot an Eotech for groups} with hand loads.