"...hope to buy a 28mm f/2.8, 50mm f/1.4, 105mm f/2.5 and 180mm f/2.8 all AIS."
"Overall I would just like to know which two of the four lenses you think I would be using the most..."
"Which Nikon lenses should I get first?"
"I know I'm the only person who can really decide this but I would like the opinions of people who use these lenses..."
I own and use the following Nikon prime lenses that are similar to the ones you mention:
50mm f/1.4
50mm f/1.8 Series E
55mm f/3.5 micro
35mm f/1.4
35mm f/2
28mm f/2.8
85mm f/1.8
105mm f/2.5
105mm f/2.8 micro
180mm f/2.8
The 35mm f/2 was the first one I purchased. I did not get the 50mm first because I knew from previous experience with my first SLR (a Miranda Sensorex) that a 35mm would be a better "standard" lens for me than the 50mm.
The 85mm f/1.8 was the second lens I purchased and the 180mm was the third. Even after I added more lenses to my inventory, these three lenses were the ones I used most often.
The fourth lens I added was a 55mm macro because I did a lot of pathological close-ups at the time.
The next lens I added was a 20mm f/3.5 because I occasionally found myself in a situation when 35mm was not wide enough.
Fifteen years after I purchased my first lens, I bought a 28mm and a 50mm from the estate of a newspaper photographer.
Please keep in mind that this is how I accumulated lenses to meet my shooting style. Your path will probably be different.
https://flic.kr/p/bFzfjZ