IMO, the Dingman belt is the best choice here. I was looking at the same options myself last year and choose the Dingman belt for the following reasons:
1. It's cheaper than its competitors while still retaining high quality.
2. Two removable buckles (steel and brass) can be switched as occasion demands.
3. Simple square buckle without a roller is the more conservative option; better choice for job interviews where you have to dress up.
I haven't regretted purchase.
I haven't regretted purchase.