I flew recently on one of the LAN 767-300ERs, coming as it did, immediately after arriving into Madrid on a BA 767. The difference from going from proper doors (which break up the plane and make it not feel so long, as well as actually making it feel wider) compared with the LAN aircraft (which felt narrower, like an A320, not helped by how LAN internally configure their plane) was noticeable. Can't say I like it, truth be told ...
Proper doors all the way!