I'd always leaned toward Leupold's Vari-X II and III until I discovered Burris. Right now, I have a FFII 6.5-20 (BMD) and two 4.5-14s(BPLX)mounted on a CZ550 .22-250, CZ527 .223, and SA M1A, respectively. The first 4.5-14 cracked and was sent to Burris for service and repaired/replaced with absolutely no hassle and no problems since.

There are probably some applications I might still favor a Leupold for (Tactical), but otherwise won't hesitate looking at Burris first.