I like some things about Lion but the launchpad annoys me. I hate scrolling through pages and pages of icons on iOS now so I am really annoyed at the prospect of scrolling through even more of them on the desktop. But there is one exception. If iPad 3 (or 4 or whatever) offered the ability to run OS X Lion, I would rather use the launchpad for commonly used apps.
As for mission control, I don't mind it. I was never a big expose user but in my opinion mission control isn't much worse and might be considered better in that you can get to all the workspaces and the dashboard from one place.
I am really not in favor of the lack of save as. I think it's a huge waste of my time to go around behind the OS back renaming files when what I wanted to do in the first place was save as. I am horrified by the prospect that version control of my documents is now in the hands of something that looks and behaves like time machine. I've had pretty miserable luck with Time Machine with a crashed Time Capsule and a half dozen corrupted sparsebundles, two of which took all my data with them. Happily the second time a sparsebundle tried to make off with my data I had already started using crashplan.
In Xcode there is still save as. If a developer still needs it, any power user still needs it. Geez.
I switched off that stupid disappearing scroll bar thing. That was an awful idea from the get go.
So now I return to the topic of the OP. Will there be as much complaint about Win 8? Yes. Sure there will. And more of it here because this is an Apple centric forum. Does our complaint about OS X Lion stem from "Apple Hate?" No. When Apple makes a mistake I call them on it. Hopefully they read the forums and when there is a groundswell of user sentiment they heed it. One example is folders and home page wallpapers. It took the jailbreak community to cram that down Apple's throat but they finally caved in. Remember iOS copy and paste? Remember iOS Multitasking? Apple stuff isn't perfect but it does (most often) change for the better.
In the case of these sweeping changes in Lion, I believe Apple will adjust to the needs of the user base. We buy from Apple because their stuff is easy to use and adapts to our workflow. If Cupertino insists on enforcing a particular workflow on its users, many will simply defect to other more flexible platforms. Meanwhile, the criticism of Win 8 will have to wait until Win 8 actually comes out. One big difference though. No matter how loud everybody shouts, I have my doubts if anybody in Redmond, Wa will be able to hear them.