Story over roleplaying, but more like story WITH limited yet impactful roleplaying.
I don't need like 6 "different" answers in a dialogue that will end up with everyone reacting the same anyway, I'd prefer something to Geralt/Shepard/Hawke way, defined character but with a few variations. Mass Effect 1-2 like would be my ideal.
Wide roleplaying just sucks with voiced characters imo, since with a voiceless pc you control how your character supposedly delivers his dialogue and there's no auto dialogue that kills off your head-canon personality. Whereas voiced characters that try to be too varied just end up being too neutral and boring.
I mean in a perfect world I would prefer a game with a voiced character that allows for a wide choice of different personalities and approaches that still feels engaged into the story but that's not yet a realistic expectation from what I've seen.
Also as Iakus said, make choices matter. No more "important" choices like saving the council or the rachni queen, every important choice should have a measurable impact on the very same game that it's made, give it at least 1 or 2 branching quests if it's something plot relevant. Else have them not so plot relevant but characterization relevant. No more pretending we are changing the fate of entire races or whatever if they are just going to basically retcon and play it out the exact same way the next game.