In terms of pure driving pleasure around twisties, I would have to say the AW11 is my favourite. The smile it puts on the face without having that much power is just more than what I get out of the SW20.
 
However, as an overall package I prefer the SW20. Its a more practical car, the power makes it fun to drive anywhere including freeways (the AW11 is not so much fun on a straight road), there's more space and just a tad more to comfortable overall than the AW11.
 
This is ofcourse trying to compare the stock aw11 with my sw20 when it was relatively stock. as it is now, the SW20 and AW11 give me totally different things.
 
ZZW hmmm... i'm in the same boat as Jay. To me, they over engineered the AW11 and the SW20. The ZZW30 just felt like they just wanted to make something to compete with the MX5, as opposed to really make an excellent machine.