Setting up a land 3 in the 767 is harder than a -320, but not by much. Obviously there are some major difference, speeds, flaps, stuff like that, and the weight.
I for one am strongly against Hagar on this one. The 2D panels I like a lot and hope they don't get rid of them anytime soon. I find no enjoyment from having to switch from 3D to 2D or pan down or zoom out incredible amounts so the world looks ridiculous just to check my radar altitude or something to that effect. I would much rather fly an approach, or any part of flight for that matter, from the 2D cockpit than from the DVC.