We replaced our old 15 ft Bush Hog last year.  I'm not sure how long we had it, but I believe the serial number was 133.  I've watched other folks, saw a neighbor's hired hand literally tear one wing off a Woods, and the only other brand I'd consider very strongly is a Schulte or a Deere.  The John Deere cutter isn't bad, but we looked it and the Bush Hog over pretty closely and went Bush Hog.

I've heard some good things about ... I think it was called Lands Pride? ... but have never looked at one.