There's a beautiful romantic undertone to Moonraker, and the narrative is quite interesting for the majority of the film. It's fluid and capitalises on what works in TSWLM. Had they tamed the jokes and prevented Bond from entering space (despite the excellent special effects, music, photography and tense scene when Bond shoots down the globes, it's not exactly in line with the essence of James Bond), it would definitely be a lot higher on fan's list. Jaws, for example, should have been a threat as opposed to comic relief. The only moment this is fully captured is when he walks down the laneway during the carnival - genuinely eerie imagery.
For TSWLM, had Anya been played by a more competent actress, and they tightened the script (i.e. cut the train sequence - Egypt to Sardinia?!), it would definitely rise in my estimations. Though I do understand it's a popular film amongst the public and fans alike, so I may be on my own on that one.