Choosing a Car: Mercedes Benz vs. BMW vs. Lexus vs. Audi vs. ?

BMW is more fun and reliable than MB

don't buy a Audi.

you can get a nice a Lexus for a lot less than a MB

the entry level BMW is better than the cheaper MB

drive a Mazda RX-8 it's controllable at the limits.

The BMW would win. BMW's M3 always wins against the competition and I'm confident that their all new M3 will set the bar again. None of the other cars will handle as well as the BMW, even though they may be slightly quicker. The Lexus won't even come close in comparison to it's German competition. I doubt that car will be as much a thrill to drive as Lexus is saying it will be. The Mercedes undoubtedly has tons of raw power and is probably the most comfortable out of these cars, but can Mercedes really make a car with the right steering feel to beat BMW at its own game? I think the Audi is probably the toughest competition for the M3. It has a lot of grip on the road because it's all-wheel drive and it has a marvelous engine and transmission. I just don't think it has what it takes to be the winner though.

Get the GS F-Sport it has everything you asked for.

If you don't care about performance than get a Mercedes.