I'm just going to look forward to both games without worrying about the petty rivalries. As long as they include multiplayer that allows me and my friends to play together, without involving the rest of the internet, and have good stories and fun gameplay then I'm all for them.
Pretty graphics notwithstanding, if either game involves sitting around for 10 minutes at a time without actually doing anything or presenting good story then it's dull and I'll switch off. If the game spends it's time showing big XXXX BUY THIS ITEM FROM THE STORE XXXX signs then I'm definitely not going to buy it.
But then I admit I'm likely in the minority when I say I have very little interest in tedious run-around-the-same-five-maps multiplayer scenarios with people I don't know. Give me a two-to-four player campaign and I'm all yours.