Aluminized will not last as long, winter or not. High temperature oxydation is much more severe on the aluminized. Once the aluminum layer is gone, oxydation gets mmuch worse. FYI, a shop in Canada has a 2 year warranty on aluminized headers, and a 5 year warranty on stainless ones.

Marco Tatta
98.5 SE MTX, Duratec
EGR block, fog light
fix, custom shift boot, monsterflow intake, Ecotek valve
Quasi dual cardoctor exhaust.
Hacksaw short shift, Momo race "s" carbon knob, ghetto rear strut bar, 16 inch cougar wheels with 225/50/16 kumho 712s