your batting choice needs to be part of the quilting decision- some batts allow up to 10" between quilting lines- so a large- easy going all over design is going to work well-some batts need to be quilted every 2"...which is quite dense-so a fairly dense quilt design would be appropriate.
some people really like to highlight the quilting- others just want enough to hold it together. each quilt is different and deserves it's own finishing appropriate for it-individually- the batting choice should be made by how you want to quilt it...there are so many different batts to choose from- with all different quilting requirements- and all different lofts- some very thin- 1/8" others 1" thick.
flat batts (like warm and natural) do not show the quilting as much as a lofty wool batt.