To: Last Brian Standing
Re: Serious Question: GTAIV or MGS4?
When I was a kid, I ate all my beans before I ate my carrots, all my fish before I ate all my corn. These days, I eat all my fries before I eat my burger and I finish any console game I'm enjoying before I start the next one.
So if you are enjoying GTAIV and are as close to the end as you say you are, then forge on ahead and complete it. Remember, the next game you're going to play is a Metal Gear game, and, in order to understand one of those epics, you need to give it your full attention. One game at a time.
By the way, I think one of the hamsters that powers the Kotaku engine sprained a leg today or something. If you have a replacement rodent, you might want to send him scurrying in.