Best director? It has to be Young
Young brought the character of James Bond to life, he turned a working class Sean Connery into a sophisticated, tough and suave spy.
It’s him who gave life to Fleming’s stories such as Dr. No, From Russia with Love and Thunderball (which was a box office success). All of the films he made were classics.
Guy Hamilton turned Bond into a movie icon, a star. He introduced such iconic Bond elements and tropes.
But then he faded once he the 70’s began. We have DAF, LALD and TMWTGG, (probably the lowest performed Bond Film in the box office). And his films didn’t aged well too.
I liked Glen, but aside from the fact that he didn’t worked with any Fleming material like @dalton said, with picking some elements from the novels, he didn’t made any Bond movie that turned into a Star or iconic status like Young and Hamilton did, his movies were fine but not on par with Young’s films and Goldfinger. He has good films under his belt FYEO, TLD and LTK, and it’s also helped that he had a great actor to work with in Timothy Dalton. But on the other hand, A View To A Kill was a flawed film, a guilty pleasure one and Octopussy was average.
He’s great, I still prefer him over the likes of Tamahori, Forster, Kershner, and maybe Spottiswoode.
The other Bond directors?
Campbell was also an important one in that he revived the franchise twice, he did two of the films that fans described as the best, Goldeneye and Casino Royale, he gave those movies a right balance of grit, humor, drama and thrill. It all worked in these two films, the majority of people looked at him as the Best Director because he directed two fan favorite films, the films that he made was now looked upon as sacred. But I cannot put him above Young.
Peter Hunt, despite of him doing just one movie, that movie was now looked upon as one of the best too, directors like Christopher Nolan and Steven Soderbergh, admired the beauty of OHMSS, the cinematography of OHMSS has became an inspiration for some of the films outside the franchise, Inception for example.
Sam Mendes also has the potential to be one of the best directors, if he just continue his streak after Skyfall, but he dropped the ball in SPECTRE.
That none of us really believed that the man who made Skyfall was the man who made SPECTRE, a disappointment and also a missed opportunity.
Gilbert? I have no problem with the guy, he’s just okay but like @plankattack said, his films all felt the same, his films are just like a rehash of his previous films. TSWLM being similar to YOLT.
Michael Apted - has also the potential to be a great Bond director but he failed to deliver the balance of drama, action and suspense, TWINE is a pretty good Bond Film, but the execution was weak, he didn’t developed the Elektra arc, adding Christmas Jones, the plot was muddled and the cinematography was just okay, it’s average. If delivered and executed well, it could have been one of the best Bond films, it’s all there, the potential was there, but it fell short.
Fukunaga, like Apted, has the potential to be great but his delivery fell short. Maybe because he needs to follow the SPECTRE storyline, but I found some flaws in the film, the Norway chase for example of how easily the cars got stumbled by Bond’s little car, are the bad guys in this film really that fool to drive a vehicle? And how come that the villains can’t able to shoot him but Bond can easily shoot them, Bond easily dodged all of the bullets except from the one came from Safin, also in Matera where again the bad guys failed to shoot him, and also the video game style of action and shooting.
Glen was great but he’s not the best in my opinion, that honour goes to Young, Terrence Young.