well my take on this is
on my benq fp241w inch composite its just fantastic at 1080p
and at vga 1080p ... colour is not washed out but its not as sharp as composite.

on my pioneer pdp42xg plasma however again composite rules but limited to 1080i for composite, 768p for vga and only at hdmi i can get 1080 p.

so for now the benq rocks on composite.