Good luck getting a response on this. I asked the same question about a year ago, and everyone was too fuckin lazy to go outside and look at what brand their cover is, and how they like it.
Anyhow...I have a Motor Sport cover that I bought at the local dealership. It has an elastic skirt around the base, and bungee hooks to make sure it stays on in the wind. I like it well enough, but I bought a large, and I think I should have gotten a medium. if you want to spent around $400 their are companies that make little bike tent/garage things. Not sure what the brand is though.
Just get a generic brand one. Do not get one that says GSXR1000 or anything like that, if you do you are basically telling a thief what is under the cover. I used an old FZR cover for my Gix when I parked it outside. I poured oil and dirt all over that bastard to make it look like there was a total pos under the cover. After that I never once had another thief try and steal her.
Goto a local bike shop and take a look at what they got