I figure we should do this considering the show is ending in 2 days and we haven't done one of these yet? I'll tally to see which episode was voted the favorite among the HxH-GAF community. Lets make this a tribute for the show ending.
Rules: 5 episodes only. Brief description as to why you chose the episode
I'll start!
Hunter x Hunter 126 - Zero X And X Rose
This episode is one of the greatest things I've ever seen. It's rare when something can mold together so perfectly to create a masterpiece. The action, plot, dialogue, surprises, music, animation. All of it was perfect.
It was the first time we got to see the King fight against a nen user who was known for being the best in the world at one point. Hell the hype got to me and although the fight was pretty one sided (to my surprise) it didn't stop it from being a great one. In retrospect the fight represented Ants vs. Humanity. And although the Ant was the strongest being in the world, he lacked one thing, experience. The ultimate being knew nothing of what human beings were truly capable of, and he had to learn this the hard way. Boom
Hunter x Hunter 111 - Charge X And X Recovery
The plan is set into motion.
We the viewers were waiting for this moment for so long. So long but the wait was worth it. This kind of signified the beginning. There was almost no altercation between the enemy and the heroes before this moment and this was the episode that finally started it all. We get a glimpse of a legendary nen user who was almost portrayed as if he were a god in this episode
Hunter x Hunter 135 - This Person X And X This Moment
:'( Well this is the end. A very sad episode that made you wonder, what if Chimera Ants and humans were able to live together on the same planet? What if, instead of fighting, Netero would have tried to discuss a different option for the Ants and humans? Would everything have turned out okay? We'll never know.
The episode was very symbolic and deep. What the gungi moves meant and their position. The "light that illuminates all" character is now shrouded in darkness while the blind women finally was able to see the light. Very deep episode. Wish I could find the link where this is explained well.
Hunter x Hunter 85 - Light X And X Dark
Yay, we finally get to see why Gon has such a strong connection with Kite. Only 85 episodes late, lol.
Before this point, the Ants weren't as scary as Kite hyped them up to be but that changed very quickly. The Royal Guard finally shows themselves and Kite's realization that this is worse than originally thought. The beginning of Gon's rage kind of originated here too. It's the first time we see the support show up and I couldn't help but get excited from this. I guess one of the reasons that made this episode to impactful was that the entire fight was off-screen and then Togashi leaves us with that final panel. Its's one of my favorites ever.
Hunter x Hunter 116 - Revenge X And X Recovery
"Nande yo, Nande yo"
Man I freaking loved this episode. I loved that we got to see Gon's emotions in full glory here. Not only was he enraged but he was absolutely confused as hell. The boys were thrown into this situation where the ant was trying to save a human and Zeno didn't help one bit by saying something so cryptic. Killua understood the situation relatively quickly while Gon was a complete mess. This is also the episode where Gon tells Killua basically to fuck off. "This shit doesn't concern you". And actually just recently (episode 147) was when Gon finally apologized to him. Pretty crazy
That's my list. No, I didn't have all my episodes from the Chimera Ant arc on purpose, it just turned out that way. I would've put Gon vs. Hisoka somewhere in there but the fight was split into 2 episodes.