Hi,
In my experience, working as a character concept artist in the games industry doesn't require a gaming specific degree, particularly for 2D art.
Because your first position as a concept artist won't necessarily be in the games business, regardless of which degree you choose, as well as because of what I noted above, I'd suggest choosing as versatile a degree as possible.
Considering all that, as much as I'd love to recommend NUA first and foremost of these, given that it was where I earned my degree, I'd suggest LAU over either of the others.
Anyway, feel free to message me again if you've got any more questions.
- Lucy