Which Is More Luxe Sirius or XM?

With two new satellite radio deals announced recently, one for XM (Porsche) and one for Sirius (Bentley) I got to thinking, which of these two major satellite radio providers is considered the more luxe based on the brands they associate with. Certainly Bentley and Porsche are of fairly equal cachet, perhaps Bentley has the edge given that the average price of their cars is a bit higher. Looking back over the different brands associated with the two companies I would have to give the nod for better luxe placement to Sirius. Let's take a look at some more evidence based on our past reports:

Limited edition cars:
The XM radio is in the Richard Tyler Saturn Sky
The Sirius radio is in the Saks Mercedes

Hotels:
Hyatt paired with XM radio
The W offers Sirius suites

Oh, and the Sirius radios are also already in Rolls-Royces. Game, set and match to Sirius.