Story: 10/10
It may be tough for newcomers to get interested in HxH starting from episode one, simply because it begins somewhat childish. The anime starts off very "happy happy" and takes quite a bit for it to get dark and violent, which is what most anime fans wanna see. If you're patient enough, you'll begin to see things change. From Killua killing people left and right and Gon getting his ass kicked left and right, that's when the story picks up. HxH produces and amazing plot with many shocking twists, leaving it unpredictable and flat-out entertaining. Probably my favorite arc in the entire series is the Phantom Troupe arc. The villains were incredibly lovable and I loved Kurapika's role in the arc. The ending to the arc is insanely mind-blowing.
Character: 10/10
Another strong point that HxH has is its cast of characters. From primary to secondary, there is literally not a single bland character in the entire series. You can hate a character, but the fact that all of the characters are so well-done, you can't help but like them at least a little bit. The main protagonist, Gon Freecss, is a very unlikely underaged hero, who's powerful, but naiive, hot-tempered, and very simple-minded. His personality is rather realistic, especially for a kid, as he's well-known to have his emotions get the best of him whenever an innocent is harmed. His best friend and probably the most popular character next to Hisoka, is Killua, an undeniably badass and intellectual 14-year-old. His friendship with Gon is incredibly deep. Killua's determination in protecting and controlling Gon shows that he can be somewhat a father figure to Gon. Gon and Killua drive most of the story, but the show would be nothing without the other characters such as Kurapika, Leorio, Hisoka, the Phantom Troupe, and pretty much anyone else in HxH. You'll love every character, or you may even hate them but what's important is whether the characters give you any opinions at all. The diversity of the characters is rather amusing as well. I love how the developers of HxH were creative with different designs, making some characters generic human beings, to making others incredibly imaginative, silly, or even wacky "beings".
Art: 8/10
It won't win any awards, but the animation of HxH is still pleasing to the eye, as all new anime should be anyways. I do enjoy watching the detail the animators put in action sequences, such as the impact of a punch or the exploding aura from a Nen ability, which are all like Hajime no Ippo style.
Sound: 7/10
Another aspect of HxH that won't win any prizes, since 90% of the background music is just reused, but I did find some tracks to be rather interesting such as some of the hybrid action music or epic orchestral songs. Some other songs are more One-Piece-type heroic or "we did it" music, which really isn't my taste.
Enjoyment: 10/10
I love the hell out of HxH 2011, simply because of its incredibly maintained plot and amazing character development. Screw Naruto, Bleach, DBZ (not showing hate towards fans. I used to watch a bit of DBZ and Naruto myself) or any of that other overpowered shounen crap; you simply cannot call yourself an anime fan without seeing this.
