We have a two-burner griddle, which works great for us. We regularly make large batches of pancakes and so forth using it (triple recipes, quadruple recipes). We can cook about 8 pancakes at a time on it. We love ours, and it gets used several times a week.

I would not want a larger griddle, primarily because the one we have is so heavy that I can barely get it in and out of a cabinet as it is. If it were twice as large, I would not be able to move it, and it would be difficult even for DH, which means it would essentially end up always on the stove. It's not a pretty thing once it's seasoned and well-used, so putting it away matters to me.

I'm sure that you can get lighter griddles that would cover four burners, but I would worry that a lighter griddle would not cook as evenly and beautifully as the heavy one does.

Here is a link that might be useful: Here's our fabulous removable griddle.