If I were you I'd go for the billy cook saddle if you were going to buy one of the ones you posted.
I haven't heard that great of things about showman saddles. They aren't crazy expensive, but not that great of quality.
Silver Royal Saddles are comfortable when you first get them, but they wear down SO quickly and start looking very unprofessional. Sometimes they don't even look like real leather.
The american saddlery saddle looks like it's that plastic-y leather which I'd stay away from-it won't last you very long.
I have heard fantastic things about the harris saddles and the blue ribbon saddles but I definitely know the whole price range deal.
You said you were from WI in that one post, I'm from MN. Here's a few in that area from craigslist: Western Pleasure Show Saddle Circle Y Western Show Saddle Western Pleasure Saddle Circle Y Show Saddle!
I'd look into a lightly used Circle Y or Tex Tan saddle if you want a less expensive saddle that still shows all of the silver. They last a long time and are pretty nice saddles. My only complaint is that they are mass produced. Also try maybe looking into crates show saddles? I know they can be pricey, but they are pretty high quality saddles.