* Les Trois Rois: This is the most literal translation, meaning "The Three Kings."
* Les Rois Mages: This means "The Wise Men" and is more commonly used in religious contexts.
* Les Mages: This is the shortest and most general term, simply meaning "The Magi."
The best way to say it will depend on what you're talking about. For example, if you're talking about the traditional Christmas story, "Les Rois Mages" or "Les Mages" would be most appropriate. If you're talking about a historical figure or an artwork, "Les Trois Rois" might be better.