Kitchen Planning :: Choosing a Grout?

Sounds fun, right?  Not really!  But it has a huge impact on the look of an expanse of backsplash tile.  I was lucky to go on a tour of homes last weekend, and saw some real-life examples of what I'm considering ....

So far, I'm leaning towards a crisp white grout around classic white tile.  I'm also considering a beveled edge perhaps?  Too busy?