Ah, this is a tricky question because it depends on the designer’s intention. As Vildy notes, fit often depends on trends and personal preference—and fashion is fickle.
The shoulders in #2 and #3 are probably close to a classic fit where the end of the shoulder bone aligns with armhole seam. The idea here is to have a smooth drop from the “hinge” so the arm moves easily through its rotation when the garment is worn. Classically tailored jackets use this shoulder fit.
BUT, all bets are off once you move into the fashion realm—or personal preferences. Factors like the position of the armhole, the tightness of the sleeve, the style of the sleeve, the stretchiness of the fabric, the size of the bust and/or bicep, and the looseness/tightness of the overall garment can alter the position. For example, #1 could be a style choice if the designer wanted to showcase a high, puffed sleeve, #4 could be a dropped shoulder with a closely fitted sleeve in a knitted wrapped top, and #5 could be a dropped shoulder on a shorter, boxy-shaped, cotton T-shirt.
Personally, I’m currently loving cropped boxy T’s with my linen joggers so I’d be all over #5. My more classic J Crew T’s which I adored a couple of years ago (which resemble #2) have languished in the drawer because they seem odd with my loose pant styles. And, with my broad shoulders and lack of a defined waist, I’d move right by #1 and #4 because those styles rarely work on my body. Of all the example, #3 is probably the closest to a fluid, tailored fit, but I find those styles kind of boring right now. My current white shirt is an oversized, dropped shoulder, boxy, cropped cotton one with a diagonally cut front which I found in a designer rack.
Guess rules are made to be broken, especially when it comes to fashion!
