I actually don't know how someone can not
be a Keanu fan. I will agree that Keanu is not the world's best actor (see Much Ado) but he has the ability to put himself in great movies. There are very few Keanu movies that I do not like. He is asked to be cool and he does it very well. Colin Farrell is another favourite of mine. Colin can act though.
As for Gibson, I was a big fan. Neuromancer is still high on my list of best Canadian cyberpunk books
(seriously, great book, I've read it three times) but I'm not holding out hope for the film being any good. It's been in production for like forever.