The not wanting to look at the page is the same sort of problem we were having, FYI. It's what made me think it might be vision-related.
Highly verbal kids tend to like to look at words. DS4's choosing to stare at a wall rather than a book about a subject of interest to him was a big ol' neon sign to me that he wasn't comfortable with the seeing. YMMV, certainly, but that really jumps out at me about your DS's refusal to cooperate.
I think about a kid for whom the words seem to move around on the page or whose eyes can't easily track along a row of words. Of course they refuse to do it! How uncomfortable!
Again, not saying this is what's up, but what you've said so far doesn't rule it out for me. The perfectionism actually makes it seem more likely to me. Kids who don't want to make mistakes are unlikely to enjoy trying to follow the dancing words across the page. It would make them feel frustrated, tired and stupid. No wonder they avoid reading! It seems like it would explain a lot about your son's situation.
My turn to ramble mostly aimlessly...
The moral of the story is that I would recommend at least looking into it. It's simple enough to rule out, you know?
