ive made plenty of quilts with fleece or minkee backs- (my granddaughter's call them-'get naked' blankies)
fleece does stretch-so it is important to just smooth it-not stretch it.
it quilts up beautifully!
as for batting some of mine have batting- some do not- that part is a personal choice- and who the quilt is for-where it's going- my son wanted minkee on one of his quilts- he lives in florida-no batting in that one-
the lonestar on my bed has minkee back- with batting