The way I see it, this thread is more a way of seeing what the general consensuses is (hence the inclusion of a poll). It isn't an attempt to find out the "truth" of which game is better, but which one individual people like more and to allow them to explain why. If someone disagrees, this also allows them to explain why they feel the way they do. Sounds like a fine thing to me.

You say this is pointless "because it incites debate on something that can't be successfully debated". Welcome to the internet, or more specifically an internet forum. Have fun going to each thread comparing things or asking opinions on things and letting the people in it know that their thread/post is pointless.