Anime with subtitles are that when the audio has not been altered meaning the spoken language remains in Japanese while dubbed anime overhauls the dialog, but lip sync can suck if that detail is overlooked since the source material for the lip sync animations regarding mouth movements as they are originally in Japanese. The thing is, when a character’s name begins or ends with ryu / ryo , they often struggle to correctly pronounce that in the English dub.
Depends on what’s available. Dubs are high ceiling/low floor, whereas subs are low ceiling/high floor, so when both are available, I try the dub first and if the dub is bad I fail over to the sub.
Pretty much what I do too