[2001 ZTS]

Highly recommend two sets of tires. As for brands Pirelli sure ain't what they used to be. My Bridgestone RE92's on the WRX are not good tires at all. By recomendation is:

Summer: Yokohama
Winter: Yokohama or Nokian

EDIT:

Tires I have recently spent some time with:

Focus summer: Firestone Firehawks (suck)
Foucs winter: Nokian Hakka 1 (increadible!)

WRX summer: Bridgestone Potenza RE92 (merley OK)
WRX winter: Yokohama AVS winter (excellent)

Old Subaru summer: Yokohama Avid (very good)
Old Subaru winter: Yokohama Guardex 600 (excellent but discontinued)