Loving Bond, and sharing your thoughts is all the reason you'll ever need. Good to see Bond make the occasional appearance on this site.
I enjoyed reading your list and ranking. I too, have ranked my favorite Bond movies from favorite to less favorite, but will save that for another day as I am getting sleepy.
Kudos to your ranking of George Lazenby, and his adventure OHMSS, on the higher end of the spectrum and not the bottom, and for recognizing an exciting installment and memorable performance therein.
Everyone's entitled to their own opinion, but I suspect that often times when He and That movie are ranked lower it is due to the still widely held assumption that he was only in one Bond because he might have failed in some way, and must not have been asked to return, which of course anyone who's done their homework will tell you is false.
Although, I'm glad to see that's being remedied and that He and That adventure now receive higher praise and placement these days, especially with longstanding, and die-hard Bond connosuiers and on Bond fan sites.
Curious where you would place the David Niven Bond vehicle Casino Royale, since you included the other non-EON theatrical release Never Say Never. Of course, NSNA does star Connery, so I suppose you're off the hook.
Overall, your ranking is not far off from my own. I thought that I place Casino above Skyfall, but upon reflection Skyfall may beat Casino, but just barely. Nah!
I personally would also have Die Another and Tomorrow Never above Golden Gun. And I would place Goldeneye a bit higher, but that's just my list. I also like that you cut Dalton slack, and have Living Daylights in a respectable spot, as it's a fav of mine. Even the lesser ones have grown on me and ultimately, I love em all!