My impression is that more people are choosing the one level island these days (or at least I've seen a number of design dilemmas with people converting their two-level islands to one level). That doesn't mean, however, that you should follow what others do. You should get what you think will serve your family best. But it might be useful information for resale. Personally, I like the visual effect of one flat expanse of granite. The lines just seem cleaner and simpler to me.

I think it depends on the length and function of your island. We just built a home as well and decided on the step up/two level island because it is 14 feet long. I figured one level on a long rectangular island would make an already long room look even longer. I do love being able to prep food and have dishes out with it all being hidden from guests behind the step up. I find having electrical outlets in the tile of the step up is quite handy as well. We use them all the time. Good luck!

Thank you! Our island will be 8 feet long so we had the same concerns about the prep & the dishes, etc.

These days, the trends are leaning towards a single level countertop. One, because of things being able to fall and break rolling from one level onto the lower. It also gives more/deeper countertop space to work with. Also people find countertop height sitting more comfortable then the higher bar stools (especially for children and the older generation). Best of luck!