[DinanM3_S2]

Ultimately it will come down to whatever you personally like, but I can tell you what I think of the cars you mentioned.

Used Evos can be risky. People tend to drive the hell out of them and dealerships are quick to void warranties if the car is modified or has been raced. Mitsubishi isn't known for reliability to begin with. They are great cars, but can be scary to own in the long run. A WRX STI might be a better alternative if you really want one of the turbo AWD sedans.

The NSX is a great car but can also be a bit expensive to maintain. I've heard that engine work is a huge pain (it is a MR car after all) and for $30,000 you would be looking at a fairly old example. They are great cars and possibly future classics, but I wouldn't go there unless I knew exactly what I was getting into.

The Honda S2000 is another great car. Great handling, if a little short on power. Not very practical, but you should be able to buy a much newer S2000 then NSX, helping reliability concerns. As with any sportscar, I would by weary of buying from a younger owner as they will be more likely to drive the engine to its extreme, but out of the first three cars, this might be your best option. If you like open top driving, this is a great choice as well.

The WRX is not as sporty as the previous 3 cars (unless its an STI), but it is indeed very good and much more practical then the NSX or S2000. The biggest advantage to the WRX is that you should be able to get one brand new. Unfortunately, the new hatchback WRXs are incredibly ugly. Subaru and the Impreza WRX are generally pretty reliable.

Other options might be a used BMW M3, BMW Z3 M Roadster, BMW Z4, Audi S4, Porsche Boxster, Nissan 350z, Infiniti G35 Coupe, C5 Corvette, or a Ford Mustang GT. Your best bet is to go test out many different cars and go from there.