Well, what's more important, how "intense" something feels, or the results that it produces?
No, 1 all out set is not more intense than 10 all out sets, but good luck making huge amounts of strength progress for reps doing 10 all out sets on a regular basis.
The name of the game is progressive resistance. Do you think it's a coincidence that every guy in existence who can rep 495 for 6+ reps has an impressive set of pecs? Or, how about that people who are only benching 135 (regardless of how many sets of it they're doing) have much smaller pecs?
So, you shouldn't be asking yourself "what method is gonna make me the most tired", you should be asking "what method is going to allow me to get strongest for reps the fastest". And guess which method (doing 1 all out set, or 10) is gonna allow you to add weight to the bar most frequently?
Of course that's the stimulation for growth, you still have to eat to give your body the raw materials to build with.
Finally, as far as the articles/books, etc... someone said it above, they're ghost written (meaning that the pro didn't write them themselves) by little "experts" who don't really know what it takes to get someone huge. They then pay the pro to put their name on the article, and viola you've got lots of confused newbies doing programs which have never produced outstanding results and wondering which supplements they're missing out on which will magically help them put on muscle (ever notice how there are far more pages of supplement ads in those muscle mags than articles?).
You wanna know what works, look what the really big guys do. Look at Prof X's and Cephalic_Carnage's threads on this site; watch vids of guys like Ronnie, Branch, Ruhl, etc...; go read some serious BB'ing forums (sorry, but T-Nation, with the exception of a few threads, isn't anymore) and you'll see that the majority of them train this way.