Viper belts are very robust - they also have a buckle that needs to have the sides squeezed as well as a button pressed to undo it, which is designed to stop people with whom you may be fighting undoing it and pulling your kecks down, which is nice if you're worried about being raped! Actually it's good because a lot of weight on your belt can cause even a light squeeze on the sides of an ordinary side lock buckle to open. They also have velcro all around the inside so they are completely adjustable and also can lock some velcro equipped belt loops/hangers in place.
Something to consider when choosing a belt to support kit is how big is your arse? Despite being a fat bastard in the gut, my arse is pretty slim which means that I have to do my belt up very tight to stop my drop leg pistol holster and dump pouch, with pistol, speedloader, mags, gloves, bayonet frog, and rubber knife, from pulling my kecks down. Which means it has to be very comfy.
My Viper belt has nice rounded edges, but I have another 50mm khaki duty belt which is just a wide webbing strap with a bit of velcro inside and the edges can dig in uncomfortably.
I like the look of the new style rigger belt with the abseiling loop and roll pin buckle, but frankly I'll bet they're actually a lot less comfy than an ordinary duty belt. I'm not likely to need to abseil or be airlifted too quickly to use a stretcher, so it comes down to the 6" stilettos argument looks vs comfort.
I have found that using a PLCE belt and yoke to support my holster and dump pouch is a lot more practical than the same belt that holds my kecks up, but that means taking a lot of stuff off the PLCE webbing set to make it fit right. Still, I'd recommend using some kind of belt & yoke combination.