Some would say Bel STiR+ plus Laser Interceptors.
Others swear by Redline.
Another set of folks would say V1 or nothing.
Yet other folks would point you to the 9500ix.
"Best" is subjective and depends on your situation and needs. NYC streets vs open stretches of New Mexico are vastly different.
Last edited by gpb; 11-14-2012 at 08:57 AM.