I'm too lazy to read through this whole thread but did anyone point out the importance of the script and the directing as regards acting. William Hurt is usually a pretty good actor but if you've watched him in Lost In Space or Michael you'd never know it. He had horrible lines in Space and delivered them woodenly at times and over the top on others. He was mostly decent in Michael but he has a couple of really bad scenes that made me think the director must have been mailing it in.
As far as quality acting goes, I hadn't fully realized the importance of the director until I watched Robert Culp do a (self-directed perhaps?) promo for one of the premium networks (ON, HBO, Cinemax, TMC whatever) back in the early 80's. It was easily the worst acting job I've ever seen and that includes every Troma film ever made (okay, I haven't actually seen every one of them, but enough to warrant a quality exagerration). Not that Culp will ever be mistaken for De Niro but this performance was worse than bad and with decent direction he's normally at least watchable.
Steve