I'm kind of glad I don't have this problem myself, lol.
I know people here list a lot of cons that come with polar fleece, but I really like it myself, and it certainly gets the job done for me.
My problem is I can't really find what I call "specialty" fabrics: furs and such, whether it's nice shaggy fur for monsters and squirrel tails, or short plushy fur for squirrels; I know people say "Well, go to Jo-Ann's! Jo-Ann's has EVERYTHING!" Well, NO they DON'T. Especially not fur. I can get really great polar fleece, felt, and other simple fabrics like that at Jo-Ann's, but that's just about it; when it comes to something like fur, I've had to make strange purchases to get the right fur and color, ranging from buying shaggy throw decorative pillows, to ordering a yard or two online... and another problem with fur is that half the time, it's sold as a "seasonal item", so my only chances of getting anything right is during the cold winter months.
But, that's off topic, we're talking about antron, and other fleece alternatives. Again, I know people keep looking at the cons, but there are a lot of pros with polar fleece as well: it's available in a rainbow of colors, almost all-year long; it may not be as fuzzy as antron, but it does a decent job at hiding seams as well, especially if you take the time to try your hand at the Henson Stitch. Even darker colors of polyester fleece (like drab grays and such) can get the job done as well.