I wouldn't hesitate to get any of them. I probably wouldn't choose the Panasonic touch-screen models. If it were Kenwood, I'd choose something out of their eXcelon series. If Clarion, their Pro Audio series is very nice.

BTW, asking the question of what's the best HU out of respectable brands is likely to have a different answer with each reply. I'd choose the one you like the features and asthetics the best.

1999 Ford Contour SVT #900/2760 (SOLD) 2005 Mazda 6s 2003.5 Mazdaspeed Protege 1998 Ford Ranger 4x4