I just ordered a 85mm 1.8D. Can't wait! I have the 35mm 1.8G and think between it and the 85mm I will be in good shape.
I would presume you are a Dx camera user. The 50 1.4 lens is a good one but in terms of focal length and practical use, it is close to your 35mm.......i
would rather get the 85 1.8 since it has a longer focal length and really sharp one, good for portraits. But again, it still depends on your shooting style and preferences.
My D7100 is listed in my profile just like the D3300 is listed in yours...You have not specified which camera you have. The "D" lenses will not auto focus on the 3xxx and 5xxx series. If your camera does not have an inbuilt motor, then you will have to manually focus the lense, unless you change it to the "G" series which are AF-S (that is they have a built in motor in each lens)