The Jedi may be the ancient protectors of the galaxy far, far away, serving the Republic for millennia with their mastery of the Force, but if you want to talk true power, you need to go a little darker.
The Sith as we know them are defined by Darth Sidious and his production line of apprentices, but the order had been around for about 5000 years before the Galactic Empire (and the species that started it all even longer than that), and in that time there's been some of the highest midi-chlorian counts you can imagine (that won't be a running thread, I promise).
There's a question of canonicity with all this - most of Sith history comes from comics and novels written in the 1990s, which was moved into a separate, "Legends" continuity by Disney in 2014 - but let's just go with it because it's a) quite fun regardless and b) too complicated without starting splitting hairs.
So, give into your hate and step into Star Wars history to discover the ten most powerful Sith Lords.
Honourable Mentions - Kylo Ren/Snoke...
Neither is explicitly a Sith Lord (although
there’s the possibility of ascension or a secret identity respectively), but
I’d be remiss if I didn’t mention Kylo Ren and Supreme Leader Snoke.
Ren (born Ben Solo) is a straight-up Darth
Vader fanboy, desperate to emulate his grandfather, and there’s every chance he
may exceed him; in The Force Awakens he did was Anakin never could, killing a
beloved family member willingly, meaning his Force energy is increasingly dark.
Snoke, on the other hand, is… erm… well we
don’t actually know. He may actually be someone who appears later on this list,
or some extra-galactic presence influencing events, or even an enemy of the
Sith. Regardless, he’s very knowledgeable of the Dark Side and, as Ren’s master, is one
of the most powerful Dark Force users.
...Also Darth Maul
Yeah, Darth Maul ain't in here. He's certainly a skilled fighter, but doesn't really show all that much to make him stand out (and what does comes after his run-in with Obi-Wan on Naboo in The Clone Wars and Rebels, after which he's lost the Sith mantle). So, sorry about that.