Aizo
Banned
You know, after reading your post I went back to read some early FotNS, because it's been awhile, and I gotta say it's not as bad as I remembered. One thing that still grinds my gears though is that the artist really loves to exaggerate the scale of the bad guys, and while I understand why they would do that it just looks hilarious to me.
I actually don't think the scale is exaggerated. His enemies are insanely large. I thought you were going to say that you dislike the muscle definition because it's completely over the top, but everything in Hokuto no Ken is over the top. That's what I love about it. I really think that the art is well done, personally.