Which of any of those games had control issues tied to vsync? Deadspace 2 and 3 didn't have those issues. Is it unfair to compare it to their sequels if you're going to say it's a unique animal with no comparables?
I didn't mention either Dead Space sequel? If there was a vsync problem I didn't have it back when I replayed the game last October. It was buttery smooth and looked amazing compared to the 360 version I played first. I'm only speaking from my personal experience.