Make teh PC purdier.
Of course, going about it like DICE did doesn't seem like a good idea. Making it clear that the PC version is vastly superior will just alienate console users. I can't wait to see what Battlefield 3 looks like on consoles, and I can't wait to see what the console players' faces look like when they see how much worse it is. That is not going to make consumers happy.
Okay, so in your incredibly Liberal view of flaws in life (I'm incredibly Liberal too, just not insanely so), it's not okay to get -any- advantage over anything whatsoever, and you might as well just go for the maximum of the weakest (serious) link.
What?
So if an extremely ugly person wanted to be a model, you wouldn't tell them maybe they weren't cut out for it? You'd fire all the attractive models so it can be fair?
That's idiocy. If I payed more for a system, or my system can handle more, I expect to see it present within the game. Consoles take advantage of their minor advantages in most released games, why not crazy advantages for PCs? How can that alienate someone? They're running 5-6 year old hardware.