GOG.com Battle of the Games: Two Worlds vs. The Witcher

Reality Pump's Two Worlds: Epic Edition is being pitted up against CD Projekt RED's The Witcher: Enhanced Edition in today's GOG.com "Battle of the Games" promotion, and given the fact that the latter was developed by CD Projekt themselves, I have to wonder if there are very many GOG.com users that don't own it yet.

So who will win? The better game, or the game users want a better discount on tomorrow?