[Sh Ranger]

Best:

Evolt. He was always a step ahead of the heroes and somehow manages to be both entertaining and despicable at the same time through his unique combination of comedy (can't make coffee, scared of octopus, treats his fights with Sento and Ryuuga like he's a father playing baseball with his sons) and depravity (consuming planets, possessing a guy for 10 years, murder, manipulation).

Genm Level 1000000000. He can throw Mars as a projectile! I feel like Another Ending is actually the "100% Ultimate Ending" since it resolves Shin Dan Kuroto Kami-sama's arc and brings him back in to focus as the main villain once more and it's his character at his most classic. It's like watching peak EX-Aid again.

Barlckxs. I have a theory that Over Quartzer is the fifth and final incarnation of Sougo and that SOUGO is symbolic of the accumulated evil of all past Sougos. It's pretty awesome to see Sougo finally becoming the greatest and kindest daemon king as Zi-O Oma to show that he has overcome his evil while accepting the errors of the past with the moral that it's okay to have chaos in history. It's also great casting since ISSA really does look like an older Okuno.

Sigma. A machine with a monotone female voice and the power to create an eternal global freeze. Considering how many were killed and injured in the first global freeze, the implications of what this thing can do is scary to think about!

Worst:

Unidentified Lifeform #0. His presence was threatening but as a final boss, he's disappointing.

Jam. Just the ridiculous concept of Kougane from that soccer movie coming back in some girl's body to get revenge and the fact that he was defeated by that unforgivable a**hole Mitsuzane who would have been a much better final villain if he didn't suddenly decide to be a "hero". What the hell!