Well I just picked this up as part of the Daniel Craig Bond trilogy Bluray pack, and I have to say it does look great. I saw it in IMAX, but Skyfall really wasn't meant for large format projection, it looked slightly blurry, whereas everything's tack sharp here. I still think the Shanghai scene looked more impressive in the theater, but that's probably because nothing can really duplicate the scale and sound of IMAX.
Maybe I'm seeing things, but it seems that among all the Bond references, there are also some Hitchcock references...the 2 falling bodies, Bond in the beginning and the assassin in the middle, just like Vertigo; Judi Dench's jacket in the beginning looks very similar to the one Madeleine wears in Scottie's house; the train going into the tunnel and Silva hiding among black-capped police remind me of North by Northwest and the burning mansion...Rebecca? I've also always wondered if the detached helicopter tail, given an extra shot, is a reference to the Bin Laden Abbottabad mission.
As for being the best Bond film...nah. I view it in a different light from the other Bond flims, it's a celebration of Bond, the kind of film Die Another Day might've been if there were anyone semi-competent in the crew. Even so, it's a bit too technically accomplished for its own good, the plot really falters during the cringy hacking scene and Sam Mendes just doesn't have the imagination to disguise it. I don't think Niome Harris really justified her presence in the film, she and Craig just don't have the chemistry, and strangely, I thought some of Craig's line deliveries were subpar. As a whole though, it's still entertaining and Craig and Co. have succeeded in rebuilding Bond after the embarrassing Brosnan years. Despite Mendes' reputation though, I think Campbell's Casino Royale is the bolder, fresher film.
If Mendes is doing Bond 24-25, I hope he focuses more on atmosphere and characterization rather than action, there are 1-2 fights in Skyfall that seem superfluous, and we know what Silva thinks of those...