These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Latin America loves the Spanish version much more than the original version as well. It helps they used the same voice talents used in Dragon Ball Z and Saint Seiya. Fans familiar with both American and Latin American versions have a hard time deciding which one they like better.
Awesome Music: Battle In Flash, the song that plays when they use their "Hissatsu" attacks (in episodes 31, 38, 44 and 51) and when Yattarou/Speedy destroys the comet (in episode 53). Sung by Ami Itabashi.
Ear Worm: The English and Japanese songs will do this to you. Otto dokoi kako/Otto dokoi mirai!/Edoropolisu wa hi-su-te-ri!
"Funny Aneurysm" Moment: In one episode, a mechanical dragon flies into (and straight through) a pagoda, throwing up clouds of dust and causing it to collapse on the street below. While not entirely a funny moment, it's not overly dramatic either, so it qualifies as this instead of Harsher in Hindsight. But YMMV.
Hilarious in Hindsight: At one point in episode 6, the Pizza Cats get trapped in a ball that oddly resembles a pokeball. The episode was made several years before Pokémon was created.