Weirdisms in Google's ranking system are sent to entertain us occasionally, and as we've had this one from a couple of people today, we suspect it's new. But don't blame us if it's not, we lead sheltered lives sometimes.
Currently, if you type "go to hell" into Google, then Microsoft Corporation, Where do you want to go today? comes first. This is particularly outstanding given that the number two slot is occupied by hell.com itself, which seems to be a very weird site we do not understand (told you we lead sheltered lives).
Honourable mention in third place for AOL Anywhere, which does indeed seem to us a possible definition of hell. Then they get kind of normal.