I started a family tradition of making homemade pizza every Sunday night for dinner. I make the dough, sauce, and cheese from scratch. I am getting ready to start the process of building a brick oven in my back yard.
I hate to break it to you but a cheese pizza can be absolutely delicious. The issue I see is that most people do two things wrong when making pizza. They put way too much sauce on the pizza, and they use way too many toppings. Even if you are just doing cheese, people typically WAY overdo the cheese. It matters because you do the cheese right, it melts and mixes perfectly with the sauce. It is just delicious.
I usually make pizza at home that are half cheese(for my son) and half with toppings. Half the time I end up eating his cheese slices. Along with adding too much cheese, people overload with toppings which just detract from a good dough, sauce, and cheese. You don't need to cover a pizza with pepperoni otherwise you might as well be eating pepperoni without the other stuff. Toppings can overpower everything else. Yes, if your dough, sauce, and cheese suck, then yes toppings are the only way to make it edible.
I would also say that I am not a Chicago style guy but a NY style guy.
EDIT: This is how a cheese slice should look(although a little too much cheese IMO):
http://motiongroove.com/wp-content/gallery/gallery/aug-13-09-ny-cheese-pizza.jpg
The cheese has absorbed some of the sauce and that is why the cheese has the color it does.
This is a nasty cheese pizza that can only be saved by toppings:
http://4.bp.blogspot.com/-UiK-1p_kl.../ue3jzoCXW-4/s1600/PapaJohns_cheese-pizza.jpg