Top 3
Porcsche
What other manufacturer has been able to sling an engine over the rear wheels and make it work? From the classic 911 shape to the supposedly pure driving experience of the Boxter, Porcshe always seem to get it right and offer the value their premium demands. It all makes me willing to overlook the Cayenne.
BMW
I've only driven 1 BMW, a 2.5 X3. I realize this isn't a benchmark beemer at all, but even still there's something very impressive about how it can be so smooth and yet handle so well. Particularly given the high CoG. And of course that inline six is amazing.
Mazda
The first Mazda I drove was my dads '97 miata. That would be enough to hook anyone. After 100,000 km in our P5 I'm still not looking forward to the day it will be replaced. Anything I've driven lately just doesn't have that feeling of connection. Even still Mazda seems to offer a more sporty experience than the competitors. Now only if they could give me a 6 wagon with a manual.
Bottom 3
Chrysler
Grew up driving a Grand Caravan. Need I saw more? All recent chryslers I've been in have had terrible interiors and ho-hum handling. IMO they make cars for people who shop on price.
Ford
I had a Mazda Ranger for a few years and put ~130,000 km on it. This was an old design and still I had to replace and incredible number of front suspension pieces. It was reliable enough, but there was a lack of overall quality.
Saturn
No experiences with Saturn. I've only driven a recent Vue with the Honda V6 (hell of an engine, even if the rest is bleh). For some reason saturn drivers are always holding me up and that alone is enough to preclude me from buying one. (though the Astra is nice, I think the narrow hatch would be a deal killer).