I am looking at these:
Roland Quad Capture
Native Instruments Komplete Audio 6
Focusrite Scarlett 6i6
What I like about all of these is that I can record at 24-bit/96kHz (with the Roland at 24-bit/192kHz). They all seem to have great preamps built in (as far as my reading has lead me), but from I what I have gathered the Roland VS pres are really awesome. Which one is better, I have no idea, I will let you guys inform me

I have listened to tons of reviews on YouTube, as well as demos and they all sound good to my ears. I especially like what I hear from the Quad Capture. The Quad Capture seems to have a type of warmth to it, whereas the Komplete Audio 6 and the Scarlett 6i6 seem to have a more articulate sound. The Quad Capture coloration is very pleasant to my ears, but the clearness of the other 2 units sound great too.
As far as powering goes, the Roland and the Komplete Audio 6 use power from the USB port, whereas the Scarlett uses a power supply. In my head, the power supply would be a better way to go, as it won't still resources from the computer to power it up. This could me minimal (as I have no idea just how much power is needed), but I like the idea of getting power from a power supply.
I will be using this to record myself at home, so I don't need too many inputs. Enough for a microphone or two (for vocals and cabinet mic'ing), plus some inputs for my DigiTech GSP1101 to record direct. I plan on using the Hi Z function on each to record my bass direct too. I like that these all have MIDI ports, so that I can run a keyboard through them for synth/keys/drums mapping in my DAW (Reaper and Tracktion 4).
I am not really concerned about the included software, but the Native Instruments package seems like a lot of options. I should also mention that I will be using these with Windows 7 64-bit, so I would like to get one that has a stable driver. From what I have read the Roland drivers are top notch!
What do you all think? Right now I am leaning more towards the Native instruments Komplete Audio 6, then the Scarlett 6i6, then the Quad Capture.
Thanks!!!
Cole