I had a trophy ridge matrix sight for about two years and the only complaint that I had about it is that it wasn't very bright in low light conditions. I recently switched to the new Copper John Dead Nutz 2 and they are extremely nice and very bright too. By "vertical sight" you mean the vertical in-line pins, then you aren't going to have a really big choice, as I think there are like only a few companies that do that (I could be wrong though)

.