EDIT: @ Mr. Agent
Yes I know what you meant, in that the UI doesn't have anything to the protection that Avast provides, feel free to read my last post.
So if you understand it is a personal preference thing, then why post that you don't know why people don't like the new UI? Maybe you just skimmed through the posts and didn't read the reasons people posted, or maybe you wanted to sound condescending ( I don't believe it was this reason), or maybe it was an innocent post. Either way you know the reason why people don't like the UI.
As for the change to version 7, your comparison not completely accurate, but I get what your saying. Going back to version 7, for me, is simple. I have read the changes in v8. There isn't anything that really affects/helps me. Yeah ther are some good features in it and Avast is improving. Although I have never had any problems with Avast, the new editions/ features aren't anything I need, as I have other software I use and prefer over any others that do the same thing if not better. As for performance and stability, I have never had any issues with that. Only AV that has performed better for me (speed wise) was, believe it or not, Norton IS 2010. I stayed with Avast as it caught more malware than Norton.
Now seeing as I didn't need the update, and the only real problem I have is with the UI, well I reverted back to v7.