Happy with a 2 seater. Good point regarding the TT though, have you personally driven a 3.2 AWD before?
Not a fan of the RX-8 although I am sure it is a great car I just really don't like the looks. The 350Z on the other hand...
I haven't, which is why I would prefer not to make judgement.

My only issue with AWD is that while it's great for sticking to the road like snot on a scarf and you get your kicks out of g-forces etc. I prefer the feeling you get from RWD and it's ability to be tossed around at low speed while giving you a massive smile. Going fast sounds great on paper but it's not exactly funny when Mr. Metrocop is peeking through your window.
As for the RX-8, yeah, not everyone's cup of tea, but it does have that "special" feeling to it when you're driving around.

I'm sure something like the 350Z and S2000 does too, and then some.
Things that makes ME turn my head when looking at a "drivers" car:
50/50 weight distro.
Not TOO much traction (relative to the power delivery of course), it needs to let go at a certain point.
RWD, front engine, I haven't driven rear-engine but of course it's fantastic.
Double Wishbone suspension, or, front wishbone rear multilink.
Short shifting gearbox (gear ratios to fill a 6 speed box, yeah, I love shifting

)
Not too much clutter in the interior that adds weight. Just basic gadgets and stuff (aircon, radio etc.)