Dr. No, From Russia With Love, and Goldfinger are considered more spy noire than the rest of the Bond flicks, as they were intended to be more straight-up adaptations of the novels. When Thunderball came along, then Bond transformed into a cinematic action hero.
I definitely think that any Bond movie fest must include one of these, with that knowledge. It's really a whole other style of movie.
OHMSS is the first real solid combination of the action hero/spy noire genre that we see in the series. The Living Daylights is another example of this, and while it is very true to the short story of its name, it also gives a cinematic picture of the late Cold War in the Soviet Satellite countries.
The Pierce Brosnan movies, much like all of the post Man with the Golden Gun Moore flicks, are really big budget, implausible, cheap sci-fi-esque crap.
If I were you, I'd be showing Dr. No, On Her Majesty's Secret Serivice, Live and Let Die, The Living Daylights, and Casino Royale.
To be honest only The Spy Who Loved Me and Moonraker are completely ridiculous Moore films. For Your Eyes Only is a pretty straight spy thriller, and even the schemes in Octopussy and A View to a Kill aren't that sci-fi and implausible really (especially compared with the last two Connery's for example--aspaceship eating rocket launched from a hollow volcano, and lasers in space- or even, and it pains me to say it, OHMSS)