which is better for navi? for sound?

the Eclipse is a single din while the z2 is double. I don't want to know feature wise (like the z2 has an extra 10gb for music or the eclipse is more expensive) I want to know of the features they have the same, which does what better?!

Link to eclipse: http://www.eclipse-web.com/7000index.html

Link to pioneer: http://www.pioneerelectronics.com/pna/v3/pg/product/details/0,,2076_310069681_423070352,00.html

i personally think the eclipse navigation interface/graphics/maps look dated when compared to the avic Z series.

i personally think the eclipse navigation interface/graphics/maps look dated when compared to the avic Z series.

I agree, which is why i didnt go with the eclipse unit.