I realised today that so far this year, I've been in a position to drive several types of car - mostly very new (just a few thousand miles) courtesy of Avis.
Here's the roundup, in approximate chronological order:
1) Jeep Liberty

Uncomfortable, slow, basic and handled like a boat.
2) Chevy Impala

This handled like a proper car. Well, not a *proper* car, but it was reasonable for a cheap family car. It was sufficient to get us to San Francisco and back and was easy to push to it's limits on the canyon roads. Inside was horrible, low spec, cheap and nasty.
3) Mercury Montego

There was nothing good about this. Plastic seats trying to be leather, disasterous interior and handling to rival a tank.
4) Ford Mustang

Now, I have to admit, these do look kinda cool. They're much smaller than you might imagine, with seriously restricted visibility at the front, thanks to a low seat and high bonnet. The rear and sideways visibility isn't much better thanks to badly shaped and sized windows. Rear Wheel Drive was about the only redeeming feature.
5) Dodge Magnum

This one wasn't mine, but I did get a chance to drive it. Fortunately I was able to give it back very, very quickly. I can't think of a single redeeming feature.
6) Nissan Altima

I actually had two of these - a normal petrol engined one to start with, then a Hybrid version with electric and petrol engine. Nicely designed and reasonably quick with great handling. The two I had were reasonably low spec - assuming a higher spec has decent leather seats and a few toys, I could contemplate actually buying one. I was really unhappy to give the Hybrid version back yesterday, thanks to some blind woman reversing her Hummer into it.
7) Chrysler Town and Country

Aaargh. Thrifty in Chicago took a booking for a car, but didn't have any. So they "upgraded" me to a mini-van. I felt like some sort of school-run-mum. 87 cup holders were the only nice feature.
8) Dodge Charger

This is my current steed. Much bigger than it's other muscle car buddy the Ford Mustang and it looks cooler too. Otherwise, it's not quite as bad as the Dodge magnum, but, it's pretty bad. Slower than the Titanic and I have a feeling it's going to drink fuel like the Titanic too.
So, overall, the Japanese car get's my vote - I wish I could swap the charger over for another Altima, but I'd have to drive all the way to LAX and back to do that.