B&W 804, JM Lab 918, Thiel 2.4, or Helicon 400?

Thanks for your suggestions on my previous thread. i've done some homework and here's my short list:

- B&W 804 signature
- JM Lab Profile 918
- Thiel CS2.4
- Dali Helicon 400
- Aerial Acoustics Model 6
- Spendor S8e

I know, I need to go and listen for myself. Will do.
However, I have to travel somewhat far to audition some of these, so would apreciate your thoughts: Is any of these speakers in a different (ie; higher or lower) league? They are all in the same price range.

This will be an upgrade from B&W CM4, and initially will be driven by Rotel RB-1080 (200 Wpc) and Rotel pre-amp (RC-1070). Later will upgrade these as well. Room: 13 x 17 ft.

My music preferences: Blues, jazz, rock, tango, classic.

Thank you!
Horacio