Best support?

none of the above it is definitely

Janna

Out of those it depends on the game and your elo. I think leona is the most fun out of those though.

Thresh can fit into pretty much anything.

Low elo: Leona High elo: Thresh

Braum for either, favoring more high elo.

It's either or

It depends on the situation, but all of them are good. Nami will shit on all of them however.

Caytheles is the best support B)

Depends on the ADC. Some gel better with different supp's

< confirmed.

Leblanc buils with 20% cdr on runes and masteries first ite sight stone second boots and blacl cleaver Full tank from there on or runas hurricane/static shiv if your team needs a good splitpusher

Leona isn't even as good as Nautilus. Braum is very strong since his last buff. Thresh has ALWAYS been OP. He has insane utility, CC, and damage.

Leona is best at low elo and by far the easiest to play. Thresh is good at high elo because of all his utility but he's been nerfed enough that he doesn't have a great winrate. Braum is a solid pick that's more defensive than leona. I would recommend leona as she is fun to play and gives you high kill potential in lane. Even if you lose lane at silver elo or lower it is really easy to find picks with her ult in the mid/late game.