Damn this is a tough choice...both the Z and the G35 are nice, and the Z4 is a BMW...but in the end I chose the (Accord).
BUT IF THIS WERE SUV OF THE YEAR, I would pick the Pilot. I shall now babble incessantly about it: This is the best car (IMO) that had its debut in 2002. For under $35K you can get a fully loaded EX with leather and Navi with plenty of room for other options. It has seating for 8, 5 of which very comfortably, and the two front seats feel like chairs you would put in your living room. There is a place to store everything you could possibly think of, and plenty of cargo space in the rear...more so when the 3rd row seat is down. The 3.5 V6 is very smooth, the car is well balanced front to rear and side to side that it has a very stable feel to driving it. The only drawbacks people buying it have is the sunroof...but even at that it still did not prevent the purchase. This is a great vehicle for any family and is well within the price range of most.