Like a lot of other responders, it's horses for courses for me. I'm old enough to have grown up with primes (first camera in 1970 was a Yashicamat TLR) and developed the ability to see in the perspective of a few primes when I could afford my first 35mm SLR. For medium format today, it's all primes, mostly 80 or 100mm on a Hassie 500 C/M or a 903 SWC. For 35mm film (all B&W these days) it's all primes, either 95% modern AF 28mm or 50mm Nikkors and occasionally an old 200mm f/4.0 AIS or a 28mm or 50mm Leica, depending on the camera I take. For full frame digital, as above but with 14-24mm zoom for very wide angle and a 200-600mm for sports. The zooms get used maybe 5% of the time. Oddly, with my Olympus EM-1 MFT, it's almost 100% 14-40mm or 40-150 mm zooms. Those Olympus zooms are great lenses, and I tend to take that camera on trips when I want to travel very light and photography is not the main focus. Modern full frame zooms are also very good though. They are just bulky in full frame applications.