Gerry, as noted above there is no "best" as there are too many unknowns. I would recommend 1.7 Maggies for under $2K but it wouldn't be worth squat if you didn't have the juice to run them nor the space to let them breathe.
Provide some more details as your current system, room and desired listening levels and maybe the type of music you like to listen to and I trust you'll get some relevant recommendations...
