Boaster is an option for the early 2023 success, plut he's got top 8 at every champs and made an international every year. But, he's more accomplishments than player imo.
Boostio is the newest here. He uses his pieces amazingly, won a champs, won a regional split, and was in the Grand finals of a masters his first time there. If 100T does well at shanghai, he's REALLY in the convo. As a player, he's probably the best individual and caller balance. He can shoot and he can call at a really high level.
Then there is Saadhak. In 2022 he only lost to 2 rosters, made 2 grand finals, and won champs. In 2023 he again made all 3 international lans and got top 3 in two of them, including handing the stacked Fnatic roster 2 of their 3 losses that year. He has won multiple brazil splits and an America's split. If you really want accomplishments, here is your guy.
But, then you have a guy without a rating on any agent (with 200 rounds) about 1. What about a guy who had the worst duelist in Apac on his team. A guy who did all of that yet was the first to hand a team with likely the goat of the game and another top 5 of all time player. Never won a regional title. Never won a champs. But nobody in the server is as effective as an IGL as FNS. You all watched NRG play with 2 champs winners instead of him, and they were one of the worst strategic teams in the America's region. Nobody manipulates the game like him. Nobody commands his players like him. Nobody is equal to him as a pure IGL.
Tl;Dr:
Saadhak for accomplishments
Boostio for modern day + role efficiency
Boaster if you're a fnatic fan
FNS for pure IGL abilities
I'm (clearly) an FNS simp, so base it off what you value.