The op said he was building a PRS rig. If he was building a fclass or benchrest you may get a different suggestion ( BAT or Borden). If he needed a hunting gun I would probally just reccomend a tikka and save the cash.
What's important to me?
Design- how the action is designed to reduce or eliminate failure of small parts. How do they hold up under heavy firing schedules and will they still run when wet, muddy, dirty, dry. Do I need to worry about trigger timing?
Support- is the action well supported , are spare parts easy to come by ( extra bolts and firing assemblies). How is the ecosystem? Are there plentiful in stock prefits made by the best smith's ( stuetsville, lri, hh, sac, spr, gap) using the best barrels ( bartlien, hh).
Feel- how does it feel running it. Less important but is is smooth? Does it have anti bind rails so I can run it off axis and it not bind or malfunction when it's dirty.
Reputation- how long have them been building actions. Tate worked and helped design the Surgeon 591, which until the impact came out was the golden standard of actions for the preceeding 10 years. Impact is basically an updated and product improved surgeon. Very long tract record of excellence. Surgeon sold out like defiance. I wouldn't buy either , I prefer to buy from the guy who invented and still makes them. There is pride you cannot buy.
Just some of the things to think about.
And to the dickhead who said I am new to this, I have been building buying and shooting LR guns for over 20 years. Not as long as some of the old heads around here but longer than some of the peckerheads talking shit in here. I built guns that are older than some of these clowns.