Ive got Sirius, my in-laws have XM so I can make a judgement about both
Sirius is by far better than XM. Sirius Blues 74 plays better blues. XM doesnt have a true Heavy Metal channel, where as Hard Attack 27 kicks major ***.
Plus Sirius has Howard Stern in the morning, What more could you ask for?
If you have any questions about Sirius feel free to ask.
You can sample sirius by going to their site and clicking on "listen online"
http://www.sirius.com
Ron Paul is like Kryptonite to Tyranny
Guitars:
MIM Fender Stratocaster, Ibanez AS73, Fender F210, Martin Backpaker Steel-String
Amps:
Behringer V-Tone 2x10 60W, Marshall G10 MkII, Danelectro E-Studio Honeytone.
Pedals:
Danelectro Corned Beef reverb, Johnson flanger, DOD FX25 envelope filter, Behringer Hellbabe wah, Digitech Bad Monkey