I guess the dub would have been all around better if TPCI had it from the beginning. There would have been no useless edits such as removal of Japanese text or changing riceball and other Japanese food references to more American foods. I imagine there wouldn't have been so many banned episodes (not sure what would have been done about the one with the guns) and I guess it would have been closer to the original.
The only thing I could say I prefer about 4kids was their openings. I really only liked two of TPCI's while I like all of 4kids'.