In my opinion Nacho had the best ending of any character in the BB universe. He knew he was going to die. Even so, he controlled the situation and died in his own terms, he chose his fate. He screw up Gus's plan to eliminate Bolsa, he took way to Hector and the Salamancas the pleasure of killing him.
Before he died he made sure his dad were safe and confessed to Hector he caused him to have that stroke that put him in a wheelchair. His suicide made Hector feel so frustred that shortly after he shot to Nacho's dead body to vented himself. So far he's the only character that fucked everyone's plan all by himself. He was cornered and sorrounded by Gus and his henchmen, Bolsa, Hector and The Cousins, and he won with his suicide.
Man, Vince Giligan did an amazing work with this character, making him go from a minor to a one of the most relevant characters in the storyline.
Any other opinion about Nacho?