10 days- Dubruvnik, Split, and Hvar/Korcula/Brac?

My friends and I (mid-20s) are landing and departing from Dubruvnik. I am planning to do:

Dubruvnik (3 days) & Split (4 days), but unsure what city to also go to? I wanted to go to Hvar to party but with the new noise restrictions, I am not sure it will be worth the cost.

Should we just do a day trip from Split to Hvar instead of staying overnight?

I think the other city we can spend time in is Korcula or Brac (3 days), but I really don't know the difference... We definitely want a good mix throughout the 11 days we are there but hard to know the vibes of each city until we get there!

I don't want to constantly be packing up our stuff and checking into stays so I prefer day trips but if its truly worth it we can.