I've used Leopard, and Snow Leopard and been more than happy with them. I also have an iPad, and after my Swiss Army Knife, it's possibly the most useful 'thing' I own.
But I'm under no illusion that my Macbook and my iPad are two completely different beasties, and that they work (or at least should, imho) in different ways.
I'll confess to being a fully paid up Apple fanboy, so I downloaded Lion on the day of release (4 hours over a 10 meg line!!), and installed it straight away.
More fool me.
Thankfully not so foolish that I hadn't got my TM backups up to date, and taken a bootable copy of SL, courtesy of SuperDuper!
I don't do 'change for changes sake'. I'm fine if something's better, but when it's just 'different', well that hacks me off.
I lived with Lion for three days, spending most of that time trying to find ways to change things back to the way they were under SL, and hoping that there would be enough improvement elsewhere to make the hassle worthwhile.
There wasn't.
The colour scheme / reduced button sizes etc, was just plain annoying. As someone said - was it developed in 1960's Russia?
Autosave. I'll decide when something gets saved, and if I lose 3 hours work because of a crash, well that's my fault and no-one else's. The fact that you couldn't switch it off incensed me.
Ok, you could switch of the auto restore of app windows, but the fact that you had to uncheck the box for desktop restore every single time you shut down was unforgivable.
The screens that 'zoomed out' at you just looked tacky and childish (and slowed things down).
The gazillion different gestures... does anyone find these intuitive? Sure, over time you could probably learn them, but quite frankly I know how to move between apps / click on tabs etc, without having to commit a bunch of seemingly random 'twiddles' to memory.
And as for the ridiculous scrolling... previous posters have covered that.
Launchpad. Great! Beacause how else could I have started my frequently used apps from the desktop? I'm mean, it's not like they're all lined up along the bottom is it...?
Oh wait! Yes they are!
Mission Control? I never felt the need to use Spaces - most of the time I do no more than two or three things at once, and I can manage just fine with Cmd-Tab, but it sounds like those people who were fans of it have been hacked off by an apparent retrograde step.
Full screen? If I'm working on something, I want the toolbar there! Not hidden. In fact the only thing I'd want running 'true' fullscreen is the DVD player, and let me think now...
Oh yes! It already runs full screen in SL!
All in all, plenty that was different, little that was better, and a whole bunch that was worse.
Clearly the marketing guys pulled rank on the techies this time : 'There are millions of people out there who own iPhones, iPads and iPod touches, but who still use a Windows machine. Make OS X just like iOS so we can entice them over, and to hell with the people who like there Mac just the way it is.'
Never been so glad to have taken a backup!
Fantastic post, spot on