Yes, quite easily

Altough I believe they could stop the Empire, Palps, Vader and the Death Star would definitely pose a challenge.

^the only planet destroying attack they have is the Death Star and that’s needs to charge and recharge, etc.

Sonic is a better weapon of mass destruction than the Death Star

And what about facing the sith lords in a direct confrontation?

He blitzes and oneshots them

Altough Palps and Vader do have some pretty insane reaction time and superhuman speed, it's still litterally nothing compared to Sonic so yeah I agree

Sonic is faster by feats

Remember he nearly outran a black hole once