I usually view a developer as a way to gauge the kind of product I'm in for. I look at Platinum Games, and I only really liked about half of their stuff; Vanquish and Mad World. I could not get into Anarchy Reigns, despite my acknowledgment of it being an awesome 3D brawler, and I tried thrice to get into Bayonetta only to come to the conclusion that Kamiya is sometimes just a ****ing idiot and all of his ideas aren't great. I shook my head upon reading his definition of Witch Time being "Witch Time is like Bullet Time, but for witches, and it's sexy," and I could not see Bayo in that "parody of sexualization" that they wanted to depict :/
I'm excited for Metal Gear Rising because I'm a huge Metal Gear and Raiden fan, and I love good action games. I cared very little that Platinum was attached to the game, aside from knowing that the action will be tight. I couldn't give two sh*ts if MGR outsells DmC or not. I love DmC and I'll probably love MGR as well, both on their own merits, and not for the companies attached to their development.