I went with the Q9m from Verizon because I read that the Samsung BT stack is not the standard WM one. I was considering the SCH-i760 but I'm happy with the Q9m. Verizon is the only provider that works reliably at my house and I didn't want a data plan so BB was out.
It pairs fine with my 2004 with 4th gen BT module. It supports phonebook transfer and roaming indicator.
It runs WM 6 standard. I don't use the VZW multimedia screen.
I added an extended battery, 8 GB miniSD card and I have a miniSD WiFi card.
I'm using this "My Phone" skin:
http://forums.sbsh.net/index.php?showtopic=21392