Construction crossroads

The benefit of these massive hexagons is that you can put a quilt top together in a snap!  There are 64 hexagons here.  As you can see, I still have to trim off the sides so that the edges are even, but we're more of less done.  My husband looks a bit askance at it - the riot of colour and pattern is a bit much for him, but I love it.

But now I am at a crossroads; I have to make a decision about the next step, and I am having the devil of a time making up my mind.  Here are some choices:
(1)  Wool batting and voile back.  Pros: lovely, puffy quilt, super warm, quilting shows great definition. Cons: can't put wool batting in the dryer, so will the velveteen keep its cozy softness if it is air-dired (think towels dried on the line)?
(2)  Flannel batting and voile/regular cotton back.  Pros: a light, coverlet kind of quilt/blanket, which is something that I've been wanting to make (but is this the right project for it?).
(3)  Velveteen back, flannel or no batting.  Pros: Velveteen on both sides = super luxe!  This is also a con - I'm not sure I could handle so much velveteen.
(4)  Regular bamboo batting, voile or flannel back. Pros: Great drape. Cons: Would be reneging on my desire to do something different with this project.
I am bouncing around among each of these four options - I just can't make up my mind, because each one sounds completely awesome to me.  What would you do?
ETA: Linking to Amanda Jean's Finish It Up Friday and Amy's Sew and Tell.