I have both the Marantz 8802 and the Parasound JC2-BP. While the 8802 is an excellent home theater processor, the Parasound provides more detail and much better imaging - deeper, broader and more 3-dimensional sound stage. The Marantz sound flat in comparison. For music, it's a worthwhile upgrade.
I haven't heard the McIntosh.
I haven't heard the McIntosh.