Ours would be ovens—and that's not even a big deal. Plenty of people have two ovens! We don't, though, and when we're entertaining, we have to be strategic about spreading things out between oven, stovetop, and no-cooking-necessary.
Less technical: How about two windows? So you get light in every corner.
Hey, maybe you want two microwaves. It's your dream.
(Image: Urban Grace Interiors)