KotoR 1&2 the companions were good, swtor had some good ones and some garbage ones. Mass Effects 1 & 2 companions were pretty good though I'll admit Jacob seemed irrelevant, same goes for the companions introduced in 3, I genuinely remember nothing of Vega. Fallout 4's companions were alright, though that whole game wasn't fleshed out enough.
The thing with Shadowheart is mainly her bitchyness comes from when you're trying to pry/learn more and considering she's a Shar disciple it makes sense. She has a general dismissal of the Grove and its problems but so did all the others except Wyll. Hell, Wyll is the only one with a hard red line for conscience. As for companions being "original" They're all a repeat of something previous, maybe just with a different coat of paint, plenty of tropes for everyone.
