I have seen all the Bond movies and even though I believe you can't really compare them because they have been made in different eras with different equipment (just like F1 World Champions), entertainmenwise Skyfall was one of the best. Nice storyline, great acting and a lot of calm periods (something that the utterly shitty Quantum of Solace didn't have. This one was a disgrace). I especially liked the last part of the movie starting with Bonds and Ms escape to Scotland. Some great settings and just well executed filmmarking.