When I used to carry only 3 lenses (when I was using Canon NF1's) I used to carry one of the following 3 outfits:

14mm f2.8, 35mm f2 and 200mm f2.8 - this was the "in case" outfit, as the 14mm was what you would call a real wide (and rectilinear so no distortion), 35mm because you could shoot pretty much anything with it, and the difference between 14mm and 35mm was staggering, and 200mm because it was a big step from 35mm, and f2.8 was a wonderful aperture to shoot at.

24mm f2.8, 50mm f1.4 (old FD) and 100mm f2 - 3 lenses that you could easily shoot a wedding with...

and then there was the "motorsport outfit" - 300mm f2.8 (my "standard lens for sport"), 200 f2.8 (for when the 300 was a bit too long), and a 24mm or 35mm for wide shots....

Now days if I shoot film it's with an EOS so I use my 17-40L, 28-70L and either 70-200L or 100-400L (depending on whether I know what I'll be shooting or not).....

My honest opinion is to use whatever lenses work for you....