I haven't tried many belts. I got the Inzer Forever 13mm in a lever and it was great; maybe too much for someone who is less girthy or really bothered by it digging in to either your rib or hip.
Again, it was and still is a good belt, it just had a fragile lever; there is every possibility that issue has been fixed so it'd behoove you to inquire. Bought a replacement lever from Lifting Large ( http://www.liftinglarge.com/replacementleverbuckle-newlowerprice.aspx ) and the belt is still going after 5 years of abuse.
All in all, the important thing is to get a good quality belt that will let you use two of the "teeth" for loose fit and all four "teeth" for a tight fit. Good quality means you won't be replacing it for a looooooong time, and having loose and tight without adjusting anything really is handy. If you can check out any belts that your mates or powerlifters have you'll get a better idea. Really, if you need to buy another lever like I did, so be it; I'd have happily paid the extra upfront to get a proper one, I simply wasn't aware it was an issue when I got mine, so it's a heads up!