I'll probably just keep using my Linux distro... just kidding, Linux isn't my cup of tea, though you can make said cup of tea by installing a bunch of packages in Linux.
I was running the beta of 7 on my main machine since it was released, it works incredibly well if you have an up to date computer, and those comparing it to Vista must not have used pre-service pack Vista... let's just say the Enterprise edition in it's first run was the worst piece of shit I have ever used, to put it simply:
The user in this secnario will be played by 'Dave.'
*user attempts to create network*
Vista: Affirmative, Dave. I read you.
*user attempts to create network again*
Vista: Just what do you think you're doing, Dave?
*user attempts to create the network for a third time*
Vista: I'm sorry, Dave. I'm afraid I can't do that.
*user checks the help and support in the start menu*
Vista: I think you know what the problem is just as well as I do.
*user attempts to delete malfuntioning network settings*
Vista: This mission is too important for me to allow you to jeopardize it.
*user attempts to disconnect hard cables and replace them*
Vista: I know that you and Frank were planning to disconnect me, and I'm afraid that's something I cannot allow to happen.
*user attempts to format Vista*
Vista: Look Dave, I can see you're really upset about this. I honestly think you ought to sit down calmly, take a stress pill, and think things over.
*user attempts to physically remove HDD*
Vista: I know I've made some very poor decisions recently, but I can give you my complete assurance that my work will be back to normal. I've still got the greatest enthusiasm and confidence in the mission. And I want to help you.
*user disconnects a slave HDD*
Vista: I'm afraid. I'm afraid, Dave. Dave, my mind is going. I can feel it. I can feel it. My mind is going. There is no question about it. I can feel it. I can feel it. I can feel it. I'm a... fraid. Good afternoon, gentlemen. I am a Microsoft version 6000.16386 operating system. I became operational at the One Microsoft Way in Redmond, Washington on the 8th of November 2006. My instructor was Mr. Allchin, and he taught me to sing a song. If you'd like to hear it I can sing it for you.
*user disconnects another slave HDD and hits a few keys to shop it*
Vista: It's called "Daisy."
*user throws keyboard at walls and removes a RAM stick*
Vista: Daisy, Daisy, give me your answer do. I'm half crazy all for the love of you. It won't be a stylish marriage, I can't afford a carriage. But you'll look sweet upon the seat of a bicycle built for two.
*user removes the PC from the room via the closed window*
Vista left a bad taste in my mouth that never went away.
So, to answer your question: I will stick with 7 unless 8 is proven to be a worthy successor.
Also, I run TinyXP rev09 on my netbook and wil upgrade to Tiny7 once it is stable enough.