Which version of Tao Te Ching is the best?

Here are three versions that I think are better to recommend to you:

Heguan Edition: One of the earliest editions, emphasizing Taoist thought, concise writing and far-reaching artistic conception.

Wang Bi-ben: The annotation of a Wei-Jin scholar digs deeply into Laozi's thought. The annotation is accurate and concise, which is suitable for in-depth discussion.

Silk book: the oldest complete version, with the least tampering and no flaws.