My very favorite is Beres Hammond. Hands down. After that, it gets tough for me to pick a favorite...

Old School - Luciano. any of the Marley family, Gregory Isaacs, Dennis Brown, Sanchez, Glen Washington, Steel Pulse, Morgan Heritage, Toots, Israel Vibration, Sister Carol, Lloyd Brown, Maxi Priest, Jimmy Cliff, Melodians, UB40, Third World, Freddie McGregor, Cocoa Tea, Culture, Pato Banton.

New(er) - Tarrus Riley, Duane Stephenson, Protoje, Prezident Brown, Tanya Stephens, Etana, Kimberly Ann, Richie Spice.

I could go on and on..... I love sweet reggae music.