'Fraid I'm not going to vote. I have favourite roads in all the eastern states, depending on time of year.
QLD - plus for weather, minus for general road surfacing. Still some excellent roads, though.
NSW - I got out once, what can I say? Still, the Bruxner, Oxley, Putty and a few others make visiting a little more bearable.
VIC - generally too cold, although the reverse can also be true. I got cold even in Februrary! Better than Tassie in this regard, though not much. Some very good roads, though.
TAS - When the weather's good it's a blast. When it's not it's miserable. No matter where you are, the furthest you can be away from a good road is about 1 hour. <heresy> It's actually got me thinking about a car project that got left by the wayside a number of years back, simply because of the weather.</heresy>
Summary: Who cares? There are advantages and disadvantages to each. I live in Qld because I like the weather (even in summer).