Here is my little review:
First, both cars are fun cars to drive. I miss the turbo power the Evo had & the AWD. Although the Z is still a quick car, I think I need to get to lower altitude to really feel all its hp. I'm sure the AWD will be better up here in the winter time as well. I planned on buying a cheap 2nd/beater car for the winter anyhow, if I owned the Evo or 350Z. I don't miss always wondering what is going to break next on the Evo. I had numorous problems with it. I'm not saying that all Evo's are this way, but mine was. I love all the features I have with the Z that the Evo didn't had, IE; 1. CRUISE CONTROL!!! My right foot is so thankful for cruise. I am liking the leather seating and after the snow/cold weather we had a couple weeks ago, the heated seats. The Bose stereo could be nicer but I can deal with it right now. The Evo's Recaro held you in nicer but I don't plan on doing much autoxing/racing in the Z. I've always though the Z was a much nicer/sexier looking car than the Evo. I don't miss the large wing in the rearview but the Z rear window is so small I can bearly see anything far behind me. I do love the onboard computer that comes with the Z and the oil pressure and volt gauges.
Overall I think I'm much happier with the Z than the Evo. Everytime I think about or asked about the pluses and minuses the only thing I miss from the Evo is its power. I'm glad to be back into a sports coupe. Just my 2 cents.