only 3 ...This is a really cruel question LOL
depending on the day i may give a different answer and certainly with only a few years listening to salsa, and havent had time yet to explore the discographies of all of the great artists.
also, for me its more about the song, or even just one given recording of a song , be it live or otherwise, the energy that the band in that moment can make or break a tune
anyway:
1. Willie Colon
a clear winner for me (including his work with Hector lavoe, Ruben blades )
not to mention his cool 1970s ganster image LOL
2. Bobby Valentin
including his work with Marvin santiago, Cano Estremera & Luisito Carrion (the tunes just make the hairs stand on my neck ,there moments i dont even want to dance, so i can focus on listening the music

)
3. Grupo Niche
i think this group have made a deeper impact than most for salsa music right across latin america, needles to mention "Cali Pachanguero" which is more than a song really, there is just something about that song that gives it eternal life.
but they also have been able to make cutting edge salsa dura & romantica alike.. to hear them live is really the best way to hear them.
el Gran Combo should be in there too for their consistency in coming up with great songs, but it just goes without saying.
i suspect they will show up in someone elses list anyway
