How Would You Ranking All of the Main Power Rangers Villains from 1993-Today?

For me, if I wanted to rank all of the respective main Power Rangers villains, I would go by their list of accomplishments in each season, abilities, resources and power levels. So, far, only Messogog, Rita Repulsa and Lord Zedd as a married couple and Venjix are ranked higher on my list as the more serious threats based on those categories. Vrak is the closest, but aside from crippling the Megaforce team's connection with the legendary Ranger Keys by kidnapping Orion and killing Robo Knight in Vrak is Back, Part II,  I don't think he's at the same level of being a more serious worldwide threat like Venjix or Rita Repulsa and Lord Zedd are when they are together as a couple. Astronema is a case study of "evil not being born, but created." But as far as accomplishments go, yeah she has zero accomplishments, unfortunately. Master Org is probably ranked on the average level in my opinion. The rest....yeah, they are all tricky. Except for Octomus (The Master) from Mystic Force. He sucks!!

But enough about me, how would you rank each Power Rangers main villains from 1993-today based on which categories?