The first two, all the games after that are rubbish sadly.
Just personally, I actually think the SNES original is still the best game in the series. 64 is great, but the SNES game has the better soundtrack and higher stakes as your teammates actually die instead of just going in for repairs, and their kills count towards your tally, giving you more incentive to protect them.
Yes, it's a game that needs to be seen in the context of its time period, but I don't think it has aged any worse than a lot of other early 3D classics like Ocarina of Time or Banjo Kazooie.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.