Favourite 20th century decade in terms of fashion?

1920s
en.wikipedia.org/wiki/1920s_in_Western_fashion

Different decades had different aspects to offer and ones which they did better at (for personal preferences), but for generally dressed up to formal mens fashions, I like the 1960s, 1910s, 1920s, 1900s, 1950s, 1930s, 1940s, 1970s, 1980s, and 1990s. My order does change sometimes, and I am not as familiar with womens' fashions as much as mens' during those time periods, although I really like the '60s, '70s, and a bit of the '80s for womens' hairstyles and clothes, especially the '60s Mod/Yé-Yé girl aesthetics. I do own many vintage 1900s through 1980s ties that I enjoy wearing (especially because modern ties are often made a few inches too long to just tie four-in-hand style while resting atop the trouser waistband, although some old ones can be quite a bit short), as well as some old dress hats made between the 1940s through 1960s, but I also have modern Akubras and Stetsons.

1. 1930s (bias-cut, sleek gorgeousness and glamor in the middle of the Depression, lots of curled hair, golden age of Hollywood and the height of the MGM studio system)
2. 1950s (dresses, gloves, hats, pomade and wide-legged trousers with a touch of Space Age and the start of rock'n'roll and teenagers with money to spend)
3. 1970s (groovy--memorable in its terrible outrageousness, boots and minis, large hair pieces or sleek straight hair, longer hair on men, the shag, the Farrah, mutton-chop sideburns, bellbottoms, platforms, leisure suits and hotpants, everything from Bohemian to Disco Fever)
4. 1960s (Mary Quart, huge false eyelashes/heavy mascara, nude lipstick, bouffant hair and beehives, miniskirts and go-go boots!--not as keen on the men's fashions of skinny pants and smaller jackets--the decade ended in hippie hell for part of the population)
5. 1990s (I have a soft-spot for the aesthetic in the start of the golden age of genre television + teen flicks and the last decade of music I have any nostalgia for--return of the sheath dress and chunky platform heels after plaid Grunge went out along with some early '90s styles that were '80s leftovers, dark vampy makeup shades, finished off with some tattoo chokers, butterfly clips and some metallics to welcome Y2K... Whatever!)
6. 1910s (WWI and the Titanic--the end of tragic cousin-fighting royals with their fallen empires and the start of a new world order--the Romanovs and the Titanic passengers really represent the death of an era and the fashion matches--less with the S-curve corset shaping, but not yet only slips and bras)
7. 1920s (clothes that minimize curves with a straight up-and-down look and the end of the corset, but the start of the higher hemlines and short hair, finished off with cloche hats and furs)
8. 1900s (Edwardian Gibson Girls with their poofy hair, pigeon breasts and S-curve corseted figures, a decade that more resembles the last century than the ones coming next)
9. 1940s (I associate this decade with a lot of suits on men and women, slingback shoes, padded shoulders, WWII uniforms, house dresses and the Bobbysoxers before teen culture really became an economic force)
10. 1980s (hideous clothes/hair--permed cobra hair, mullets, bug-eyed glasses, too much bright eyeshadow and blush, shapeless form-hiding garments and shoulder pads are gross--everything wrong with '80s fashion is in Working Girl, but great movies--the electronic synthesizers were a nuisance on music, though)

Definitely the 1920's.
By then, corsets were abandoned, skirts were short, and bobbed hair was the fashion.
The freedom of movement must have been intoxicating, especially after centuries of restrictive garments.

Unfortunately, in later decades, there were girdles and long-line bras which were just as restrictive as corsets.
Of course, that was in the 1950's, arguably the most restrictive decade for women in the 20th century.

I'm glad that more women are wearing pants; IMO, they're much more comfortable than skirts.

The 60s followed by the 20s.

Some more early 1930s fashions:




A couple of silky bias-cut evening gowns