I much prefer having no spoken lines at all. Skyrim is a bad example because you often only get the choice between 2 different lines, but games like DA:O or Fallout give you a much bigger chance to roleplay and much more nuanced dialogue options.
The Mass Effect way was fine for that particular game because I tremendously enjoyed Jennifer Hale's performance, but you can run into the problem of not liking the protagonist's voice and starting to resent them for it (ie. Dragon Age 2).
Having a fixed character is definitely not a main selling point for me in rpgs, but playing the Witcher 3 has been incredibly fun so I'm not as bothered by it as I once was... still much prefer creating my own character however.
The Mass Effect way was fine for that particular game because I tremendously enjoyed Jennifer Hale's performance, but you can run into the problem of not liking the protagonist's voice and starting to resent them for it (ie. Dragon Age 2).
Having a fixed character is definitely not a main selling point for me in rpgs, but playing the Witcher 3 has been incredibly fun so I'm not as bothered by it as I once was... still much prefer creating my own character however.