Dude you said it yourself. Angel is the master of antistratting and countering his opponents. When does he do that? Before the game. He's incredible at breaking down VODs and figuring out how to most effectively dismantle what he's seen. In game, he's no doubt a great IGL too, always making good consistent calls. But he doesn't have the adaptability FNS has displayed. FNS is able to go into a game with prep, realize that prep isn't good anymore at some point in a series (because his opponents changed up stuff), and call beautiful midrounds on the fly. It's very rare to see a team led by him hit the wrong sites repeatedly, or stack defenders in the wrong place. Sure if it happened once or twice you could say luck, but it's happened with nearly every team he's IGL'd. Angel is a very good IGL, and a very good antistratter, but FNS is the god of midrounding.