IS SIRIUS SATELLITE RADIO BETTER THAN XM RADIO?

Just like most gizmos brand-new designs of the very same gadget are always being released. The Garmin Street Pilot GPS line has actually launched their 7200 design which is supposed to be the latest, greatest thing on the planet of GPS. The concern is-is the Garmin 7200 much better than the earlier designs?Both stations use hours of different types