There is a time and place for it. But it's not the whole movie.
Lucas ruined the originals when he altered them with his director or producer cuts, adding in cgi to70's and 80's movies.
Yes. Han shot first. My shirt says so.
Yes, quality CGI along with practical effects, works wonders. The Marvel Avengers and related character spin-offs show this can work. The Hulk is the most fake-looking thing there, and they've done a pretty good job at making him look as real as possible.
Taking a bite of a fruit hovering in mid-air, while completely missing the fruit, and having the bite disappear from the fruit (Star Wars - I think Ep 2, maybe 3, can't say for certain), is just piss-poor quality control.