You are going to get a lot of opinions from guys that their sight is the best. If you want a better answer that is more catered to you, more info is needed. What is the most important attributes in a sight for you? Durability/reliability? Features that will help you shoot better? Price? Pin brightens? Weight? Simplicity? Lifetime warranty a big deal? Made in America a big deal? Do you want interchangeable bars or a special mount like a pic mount or have a bridgelock compatible sight? Do you want a fixed pin vertical sight or a moveable vertical pin sight? Without knowing your needs and wants it's hard to say what will be the best for YOU in particular.
I'd recommend our Boonie double pin or Triple Stack depending if you want the adjustable pins and larger housing size or not. But that's only if durability, lifetime warranty, made in the USA, and features like the MRT rings, which are a big benefit to help you shoot more consistently in varying light conditions are all high on your want list.
If weight and cost is a larger concern, then there are lighter and less expensive vertical pin sights on the market and ours would not be the best fit for you. If you want a fixed pin vertical, we don't even make one, unless you want to put our triple stack head on one of our fixed pin sights and make a fixed 3 pin vertical sight. We can custom build one of those and have for a handful of customers.