faroudja chip

Hello there, still concerning the oppo dvd player,
Do U really think that macroblocking, mosquito noise and blotchy backgrounds are directly linked to the use of a faroudja chip for upscaling ??
My denon 1910 gives poorly results on my pioneer plasma when reduce's got better results with oppo to the pretty same plasma ?
I'm confused. I even thought about purchasing a sony dvd player with their own upscaling way: precision cinema progressive. I was told that the better upscaler out there still was faroudja. So I go round and round in circles. I count on reduce to make up my mind about the purchase. Thanks to all for the quick answers I got. I have to tell you that your one of the most responsive forum on the net. Merry Xmas and happy new year every1.