I have run all of these adventures and I enjoy them all. I voted for Mines, mostly because it is intended as a starting point for 5E and gives some variable adventures.
Another reason to consider the Tomb of the Serpent King is that is has been translated into 5 languages, has online versions and even a battlemap (this is not some kickstarter stretch goals. this is all free)
I've actually run all of these except Sunless Citadel. All are fun. Far and away the best was Sinister Secret of Saltmarsh.
Second place would be Against the Cult of the Reptile God. These are also the two best named adventures on the list. I'm so glad I got original copies off of ebay back in 2016. So worth my money.