No holes.
When I have a hamburger for example, I have a very strict cheese to patty ratio that needs to be carefully balanced. If there is not enough cheese, the patty and the bun tastes too dry. With the perfect amount of cheese though (holes makes this impossible), a perfect harmony is achieved between the three core elements, a Holy Trinity of burgers if you will.
On it's own I guess holes are okay, but I'm also lactose intolerant so I don't eat cheese too much by itself. The rare times that I do though it's usually shredded cheddar, good stuff.