Loved this show, but it suffered from a weird audio mix that plagued Hanna-Barbera show during the 90s. I first noticed it on "Pirates of Dark Water", an odd flatness to the voices. I think they just had a voice Director that liked to turn down the bass or something.
I was never into Cow and Chicken, or I Am Weasel. There wasn't anything wrong with them, aside of maybe the fact that literally everything in those shows had a pronounced naked butt was kind of off-putting.