They are two different lenses for two different uses.
Though the 85 PC-E can be used off-tripod, it's like turning back the clock 50 years to manual, stop-down and focus. It can be done, but very slowly.
The 85mm 1.4 and 1.8 (about 2/3rds stop slower), are like a Ferrari and a Porsche, sleek and fast and great for working closely and in low light.