Spartacus blood and sand vs Spartacus netflix?

What is the difference between Spartacus blood and Sand and the Netflix Spartacus series, and are there other Spartacus series. Which Spartacus series is the most brutal?

There are 4 seasons, all of which are on netflix

blood and sand is season 1, I think, but there's also season 0

this is the prequel season, it is about a gladiator who is supposed to hunt Spartacus in season 3, whose career is told in season 0

if you just want to watch something brutal, go to 4 chan

But they're cut on Netflix, right?