Look at and shoulder all of them then think about what you want in a rifle and what you will use it for.
Will you want sabots or traditional Patch Round Ball will you hunt or target shoot or both?
If you want traditional then plan on Black powder or Pyrodex.
If you wish to use sabots with bullets [usually jacketed] , you also need to consider powder, the TC rifles will shoot the new Blackhorn powder without modification, you can use 777 but a lot of us that tried it got what is known as crud-ring this is a hard buildup of residue about where the bullet sits and it has to be scrubbed out every shot, and the of course there is Pyrodex which work in all most everything and is reliable, dirty and low powered compared to Blackhorn but so is Black and it was used for centuries before any subs were developed. As for suggestions Fist get one that fits then if its not a TC get it adapted to use Blackhorn 209.
My personal preference would be a Triumph, with Blackhorn and Shockwave bullets. The 200 grain for long range the 250 for all around use and the 300 gr Bonded for game bigger than deer.