> 1) english dubs generally suck, imho
Long gone are the days of 4Kids unnecessary censorship of Yu-gi-oh and One Piece.
There was a time when good English dubs were few-and-far between. Maybe Cowboy Bebop and "The Slayers" were probably the only good 90s dubs.
But modern anime is much better about dubbing quality. Madoka Magika was a pleasure in both English and Japanese for me, and many find the My Hero Academia dub / sub to be fine quality as well.
Even some "difficult dubs", like Melancholy of Haruhi Suzumia, ended up being quite good because Kyon's voice actor was superb. (Crispin Freeman). One or two "star" voice actors can really carry a dub and elevate the experience to a new level.
-----
I don't understand much Japanese personally. But it seems like Japanese voice-actors over-rely upon "vocal tics", like a character drawing out a particular sound or having a catch-phrase.
Ex: "Dattebayo" from Naruto, "Arimasu" from Shana, "Nyan" from many, many cat characters (Hellsing Ultimate, Stein's; Gate, Log Horizon), "Desu", etc. etc.
English dubs typically remove the vocal tics, and rely upon more fundamental voice acting to differentiate the characters. I think it helps me get drawn into the characters more.
Ex: English Dub audience didn't like Naruto's "Believe it" as a translation to Dattebayo. The dubbing community just outright rejects vocal tics. So yeah, its a different experience, but its more "realistic" IMO.
-----
My experience with Disney's Studio Ghibli dubs has been extremely good. Disney is a top-notch studio and hires big-names like Billy Crystal (Calcifer) or Mark Hamill (Mayor from Nausicaa)