DON'T TOUCH SONY!!! UGH!!!!!!! Yeah they're flashy, but their SQ is ass...the ONLY thing sony does well is visuals. I would take the Kenwood before the sony. If the Alpine isn't flashy enough, or if you just don't like the style then check out eclipse. Otherwise find a reliable Kenwood....
oops...wait...just though of something else. Pioneer's Premier line of HUs. They've got some really nice ones. Also...something that looks really really clean without being too *bling* is the new series from Panasonic (not the Ghost ones...the ones with the blue text). Dunno how the Panasonics sound, though...but they're priced pretty well.