For me it's, without question, the Volund Gearworks G-Hook Atlas belt. I own 2, and bought 2 more as Christmas presents. I've worn a black 1.5" everyday at work for a couple of years and it looks new. My 1.75" OD/Tan sees weekend duty. They're outstanding belts at a good price, you don't have to wait months to get one and the G-Hook fits easily through any belt loop (unlike Cobra buckles).
Check 'em out: The Atlas G-hook Belt
Check 'em out: The Atlas G-hook Belt