"Is Black 2 and White 2 worth to play?"

So i decided to play some of the Pokémon games that i haven't tried. I mostly got introduced to the games properly around Gen 3 so i started there. As of now i beaten Ruby, Diamond, Y, Sun, Heart Gold, and Black.I am on the fence of playing Black 2 or White 2 and if so i don't know which to really play. Some say skip it while others say its a better follow up. Also if anyone can, which of the old gen is best to play? Like for example in Gen 1 it's Red Blue and Yellow. And Gen 2 it's Silver, Gold and Crystal. Im also considering on playing Emerald and Platinum but i am a bit on the fence as i beaten Ruby and Diamond. Either way i just like some input. via /r/pokemon https://ift.tt/3gix9Wb