How do you prefer to buy your cheddar cheese?

I usually buy my cheddar cheese in blocks. The reason for this is that it's both easier to slice equal-sized pieces to go on things like crackers and you can grate it more easily for recipe dishes. I usually don't like pre-sliced cheddar (just a prejudice of mine, I suppose). The wheel is better if you serve it as is and allow your guests to slice chunks, but I usually slice it before guests come over. Is one way better than another? I doubt it.