I'm currently laying out an issue of Tablet, and I'm setting it in Bodoni and Futura: Bodoni for readable text, Futura for titles and other stuff. The simplicity of the fixed stroke width of Futura, and the sharp contrast of width in Bodoni's vertical and horizontal strokes compliment each other nicely. It occurred to me that they look incredibly similar in their geometric qualities, so I overlaid one over the other:

The tracking had to be set to +20 or so, but they align perfectly! Incredible, considering their serif/sans-serif, German/Italian, late 18th century/early 20th century differences --- but I do suppose Bodoni is a Modern typeface. (see Bringhurst)

Mmm, type.