Andy Hertzfeld recollects how Macintosh team dissected the new IBM PC and what they thought of donkey.bas: http://www.folklore.org/StoryView.py?project=Macintosh&story...
Agree with the article, the code is not to be proud of. One thing about the Macintosh, it was better but the price was way higher. Most people stayed with the z80s that costed a fraction and were as good for games.
On the PC there were a lot of fights about standard ways to do things that just worked on the Mac: Memory expansion (that was a whole industry right there), graphics, networking, mice. Even the CPU needed a turbo button to work correctly. Just about the only piece of the PC that universally worked and didn't beg for improvement was the keyboard.
So you can argue that the "crappy PC" spawned a bunch of industries to fix things, while the Mac, which was a lot closer to perfection, only spawned small businesses to satisfy niche needs. Apple nearly died in the 1990s because the alternatives finally caught up to them, a decade later, and Apple couldn't satisfy the computing industry alone. Still can't, doesn't try.
But I had a PC (256K, two floppies) and I had a Mac, and I sold the Mac because I couldn't develop software on it without going crazy (early Mac development was pretty painful; at one point I was seriously considering FORTH, and I hate FORTH).