This is a difficult question since there are so many mods for San Andreas. Some of the most popular ones include:
– The LSP mod makes the game playable without the CD but requires some technical expertise.
– The Realistic Weapons mod replaces all weapons with realistic ones.
– The Supernatural Weapons mod, which adds supernatural powers to the characters.
– The Unofficial Weapons mod, which adds unofficial weapons like the M1911A1 and M4A3E8.