They're both awesome cars. Personally, I like the look of the Charger more. Its more aggressive styling appeals to me, and I have never been a huge fan of the 300's rear. To me, the Charger is the best looking of all the LX cars. The 300, however, does have some nice features that aren't available on the Charger (AWD, power telescoping wheel, memory seats, etc...). I went to go check out the 300 a while back, and I was immediately turned off by the fact that you are forced to get a wood or plastic (fake wood) steering wheel. I don't know about the rest of you, but wooden steering wheels really bug me. They're not nearly as comfotable as leather, and they get hot when they sit in the sun. The only way to get a normal leather wrapped wheel on the 300 is if you get the STR-8, and then you're talking about a whole different beast.
Of course, this is just my 2 cents. I hope it helps you make an informed decision.
