I haven't seen too many Bond flicks. Only the two by Martin Campbell--GoldenEye and Casino Royale, both of which are excellent--and The World Is Not Enough, which...sucked.
I absolutely adore Casino Royale. I personally think it's leaps and bounds ahead of GoldenEye, and I really like the current Bond. (Although Pierce Brosnan rocks as well. Too bad he was apparently only in one good Bond film.)
Guess we'll just have to see how the new flick turns out. I like the whole "reboot" approach, trying to make things a little more accurate to the books. Although if I heard right, the Bond in the novels is a misogynist. Guess that wouldn't really fly well, especially not today, considering Bond's popularity as a pop-culture icon. ;)
I like how subtle and more practical/realistic the gadgets in Casino Royale are. From what I remember, TWINE was ridiculous, and I hear most other Bond flicks are.
One of these days I'll see all the Bond films, but right now it's nowhere near top-priority.