I've been a Sirius subscriber for several months and out of curuiosity decided to try XM's free 3-day trial on the internet. Here are my totally biased observations and comparisons:
1) Neither service is great when it come to talk-radio. While XM's on-line sample didn't offer much of their talk line-up, from reading what's available on the site it seems both services offer mostly second-rate talk shows most of which are available on terrestrial radio. Sirius has the edge with the excellent Alex Bennett and Lynn Samuels shows. The obvious comparison between Stern and Opie & Anthony is of course a matter of taste, but I did find it interesting how much time O&A spent talking about Stern. Personally, I found O&A a bit boring but I realize O&A fans would feel the same about Stern.
2)XM's oldies channels seem to re-create the old-style music stations a little better, mainly because of the jingles and more DJ banter. They even had a show "hosted" by the late Wolfman Jack, using old clips. XM offers a 40's and 90's channel true to the decades they represent, something Sirius doesn't offer unless you count The Pulse, which, as has been pointed out here is actually Hot AC. On the other hand, Sirius has BBC 1 and Underground Garage.
3)Both offer a clean and "unedited" comedy channel, and both are equally good.
4)Both services offer a wide variety of rock that blows away any city's FM selections, with Sirius having the edge for classic rock and XM having a slight edge for metal and alternative (including an excellent channel devoted to punk and ska, which are totally ignored by Sirius).
Overall, both services get high marks although the music channels are a bit heavy with voice-tracking...I like a live DJ who can maybe take a call or two and experience the real moment with the listeners.
Summing up, the choice comes down to which special features, such as certain sports and specific talk shows or DJ's you prefer In my case, the abundance of New York DJ's and hosts I grew up with as well as BBC-1 and Left Of Center make me not regret choosing Sirius...but sampling XM was an enjoyable experience.
1) Neither service is great when it come to talk-radio. While XM's on-line sample didn't offer much of their talk line-up, from reading what's available on the site it seems both services offer mostly second-rate talk shows most of which are available on terrestrial radio. Sirius has the edge with the excellent Alex Bennett and Lynn Samuels shows. The obvious comparison between Stern and Opie & Anthony is of course a matter of taste, but I did find it interesting how much time O&A spent talking about Stern. Personally, I found O&A a bit boring but I realize O&A fans would feel the same about Stern.
2)XM's oldies channels seem to re-create the old-style music stations a little better, mainly because of the jingles and more DJ banter. They even had a show "hosted" by the late Wolfman Jack, using old clips. XM offers a 40's and 90's channel true to the decades they represent, something Sirius doesn't offer unless you count The Pulse, which, as has been pointed out here is actually Hot AC. On the other hand, Sirius has BBC 1 and Underground Garage.
3)Both offer a clean and "unedited" comedy channel, and both are equally good.
4)Both services offer a wide variety of rock that blows away any city's FM selections, with Sirius having the edge for classic rock and XM having a slight edge for metal and alternative (including an excellent channel devoted to punk and ska, which are totally ignored by Sirius).
Overall, both services get high marks although the music channels are a bit heavy with voice-tracking...I like a live DJ who can maybe take a call or two and experience the real moment with the listeners.
Summing up, the choice comes down to which special features, such as certain sports and specific talk shows or DJ's you prefer In my case, the abundance of New York DJ's and hosts I grew up with as well as BBC-1 and Left Of Center make me not regret choosing Sirius...but sampling XM was an enjoyable experience.