The only BW film that I'm away of that even has a "pro" and a "standard" version is Tri-X. Tri-X Pro is made for easy retouching, and is ISO 320 instead of ISO 400. I guess there is probably pro and consumer C-41 BW.
Maybe consumer C-41 BW is "amateur", and traditional process BW is "pro"
For landscapes with 35mm film I would have chosen Tmax 100 on a tripod, but I've heard that the new version of Tmax 100 is not the same beast it used to be. An ISO 125 film would be a good choice. I like fine grain in my BW landscapes.
Film choice is personal. There is no magic film that is perfect in all situations. In fact I'd say a tripod will do more for landscape work than any particular brand of film. It's better to choose one film and stick with it for a dozen or so rolls to really get to know how you and the film get along. What works for me may not work for you.