DVD is the only format that should exist
VHS and Beta- poor quality, tracking is annoying, no movies released on it after 2006 except for a handful, pan and scan.
laserdisc- non-anamorphic, hard to find, having to switch discs is a pain in the ass
blu ray- lack of picking up where you left off is annoying. images look almost *too* sharp in some cases.
DVD- contains none of those problems
DVD wins.