But I want to point out some counter-examples.
1. Digimon Season 1 English Dub is far superior to the Japanese original. Many people choose Cowboy Bebop as the "Better in English" anime, but... Digimon S1 is night-and-day. Stronger script with better jokes/puns, cooler attack names (English "Pepper Breath" vs the Japanese "Baby Flame"), everything is straight up better in English.
2. Cowboy Bebop is probably the better known example in anime community.
3. Final Fantasy VII -- Perhaps it is more obvious that "Cloud" and "Earth" would have a doomed romantic relationship if we stuck to the original Japanese. But "Earth" was chosen as a name for the Japanese audience because English sounds exotic. To return that feeling of "exoticness", they transliterated it into "Aeris", and suddenly we return back to the original exotic feeling name.
4. Power Rangers -- Okay, I don't know how to think of this one. Power Rangers took the original Japanese stuff and changed it so much, it no longer looked anything like the original Super Sentai.
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Saban Entertainment knew how to do dubs / Americanizations. (Digimon S1, Power Rangers, Samurai Pizza Cats, Dragonball Z '96).
Just because other companies failed where Saban succeeded doesn't mean that "Americanization" is bad. Its that "bad Americanization" is bad.