Welcome to the Hide. I hope you aren't posting on behalf of either of those companies.
You won't get a scientifically reliable answer without having a batch (manufactured at different times) tested for tracking and durability. I am unaware of any such testing having been done on them. But products that are exceptional values tend to get identified pretty quickly and known widely in the shooting community. And Tract/Maven have never come up in the groups I am familiar with.
The truth is that in the $1,700 price point, most of what is sold across manufacturers is very similar in quality. You aren't likely get something consistently or significantly above anything in that price point from any manufacturer until you spend at least double that. So, at that price point, I would tend to go with a well-established company that will back up their product.
The only two optic manufacturers I can think of that punch above their price points are SWFA and Athalon.