Dave reckons my childhood was impoverished by not having seen these movies. Perhaps, but he was dead right that it's now too late to rectify. At times things get a bit Kind Hearts and Coronets with Michael J. Fox playing too many roles. I've never been a fan of any of the actors, nor Robert Zemeckis's American cheesecake films. The first one is rated #37 in the IMDB top-250.
Ebert on the first one (3.5 stars), the the second (3 stars) and the third (2.5 stars).