I have made a couple all fleece, pieced quilts. I don't have photos
but they work out pretty well. You can't be too insistent on perfect
corners... the stuff shifts a bit, but it looks good. I sewed both.
Whatever thread I had. I think the default stitch is 2.2 and that's
what I used.

My suggestion is that you should keep the quilting simple. That beast
will be heavy and hard to handle.

I made what would have been a gorgeous yellow brick road quilt from a
bunch of different fleece prints and solids. He saw it laid out before
I put the rows together and said "not big enough". As a result, I went
back and put big solid strips between the rows and then surrounded
thewhole thing with a checkerboard type arrangement, trying to get it
big enough.

He's 6"2' and carries the thing around like a blankie, wrapping up in
it when he first get up or if he's going to watch a movie or
something.

The fleece is pretty forgiving and simple lines sewn through look
good. But don't make yourself crazy trying to match points. I think
something like yellow brick road or Turning 20 or something like that
would be good. Big, easy to put together and not too fussy.

Good luck, and I'd love to ssee photos when you're done.

Sunny