I would have to start the list with anything that has Arturo Fuente in the name, followed closely by anything that Don Pepin Garcia has a hand in the manufacturing/blending of. The same with Manuel Quesada's stuff. Everyone should also try such stalwarts as Punch, Hoyo de Monterrey, Cohiba, Partagas, et cetera (both the Cuban and non-Cuban varieties where applicable and legally available).