I must say I didnt expect svideo to make such a huge difference but it did. I was having issues with color bleeding/artifacts using composite which in turn made me think of using svideo. Colors off thread: http://atariage.com/forums/topic/238287-colors-off-even-after-adjustment/?hl=%2Bsvideo&do=findComment&comment=3239311
I ended up purchasing one of these Monoprice Composite, S-Video, and HDMI to HDMI Converter/Switch so that I could have my NES, 2600 and Wii hooked up at the same time and output over HDMI: http://www.monoprice.com/Product?c_id=101&cp_id=10114&cs_id=1011406&p_id=9994&seq=1&format=2
As you can see the blacks are black, images are sharp and the color is amazing. Note, that even when using composite it was still being upscale and upconverted using my Denon amp which outputs over HDMI. I will have to do final adjustments in regards to the colors however its almost there