100% Ukraine, no doubt about this.

Economically I think Ukraine. I don't think they ever actually recovered to pre-dissolution numbers.

Ukraine

Ukrainian here, personally I think before war I would either pick Kyrgyzstan or Moldova( Ukraine close second, tho), now I would say Ukraine 100%. Maybe Ukraine and Moldova simply because Moldova might literally be anschlussed into Romania, but that's a big if.

I am going to jump on the Ukraine bandwagon, pre-dissolution it was an absolute industrial powerhouse that was building nuclear supercarriers and had a world leading aerospace industry. Fast forward and it became a country struggling to have a functioning sewage system.

On the flipside, Belarus escaped virtually unchanged. There was a period of economic collapse and societal instability as was common across the Eastern bloc, but the nation bounced back surprisingly quickly and is the closest example we have of a Soviet republic during the early 1980s. Belarus is essentially frozen in time, that goes for the good, and the bad.

Moldavia.