I prefer unvoiced main characters. Essentially when playing an RPG I am playing MY character. I have determined who the character is and what they are all about, including how they sound. In a fully voiced RPG I am playing someone elses character. This is not the same and really doesn't feel like an RPG to me. More like an action game with levelling-up. Bioware have created some excellent and memorable party members, I just wish they would continue to allow me the freedom to create my character to interact with them (which I thought was acheived well in DA:O). This side of the argument may stem from those of us who grew up with pen and paper RPGs and the old-school games such as Baldur's Gate and Fallout. I used to love it when you created your character in an RPG and there was a huge text block to fill in for your character's back story!