Yes, some people might prefer Bicubic mainly because they're used to it, since all browsers use it for scaling.
For me it's not because I'm used to it, but I mainly know the feature from Photoshopping. And for enlarging photograph-like images, nearest neighbour is really absolutely terrible.
But since this is about icons for use on high-dpi displays, this might be a whole different story.
I don't have an high-dpi display, so it would be only guessing for me what would look best.
Perhaps somebody with the hardware and the skills could try try this out and present some real-life examples.