I had 2 complete sets of the potenza's (at less than 20K) and finally replaced them with firestone/firehawks or something like that and have had no problems with them. Now granted they are not pretty or low-pro but pretty good for wet/snowy conditions. I will put lows back on when the weather gets better.

 

Pics of tires (replaced today - I did get to have some fun with the old ones over the weekend )

If you look at the pic with the level, you can see the inside tread is worn more than the shoulders - there's a gap...

 

I like my Falken FK452's enough that when it's time to replace them, I may go with the same exact tire again.
And my driving habits sound to be right about like what G described his to be as well.

 

I'm not a fan of Goodyears at all. And what Mike said about the Treadwear rating is true. You absolutely can not compare a treadwear rating from one company to another. A Michelin 240 treadwear could have better wear than a Goodyear 300 treadwear but then have worse treadwear than a Bridgestone 240... It's almost like an internal number and only can be compared to their own product line.