I've had menthol, nuport, and mint. The menthol was a little too mouthwash-ish for me at first, but it was fine after a few puffs. Its an ok flavor, just not my type of menthol. The Nuport is a nice rounded mentholly flavor because it has a hint of
tobacco in it which smooths it out. The Mint is well, pretty much mint. I haven't tried cool or salem yet, but I'd suggest just going for a good flavor like the nuport then getting menthol drops or crystals to get the menthol to the level you like.