In researching specifications and comments about modern 210mm lenses for 4x5, I'll be darned if I can see much of a difference between them. They all seem like they would be fine lenses. I live too far from retail stores carrying LF gear to be able to rent them and try them out, and I'm not wealthy enough to buy one of each. They are all available from highly rated vendors offering return privileges, and generally cost about the same. How do I chose between them? Cost alone? Pick one at random?
Note that I'm specifically referring to newish modern lenses such as the Rodenstock Sironar-N, Nikon-W, Fuji, and (of course) Schneider, to use as a "normal" lens on my 4x5 for landscapes and such-like general photography. I shoot a lot of B&W, perhaps 10% color negative, and enlarge moderately (to 16x20, tops.)
In general, once you find several competing lenses meeting your criteria, how do you chose which one to buy?