I've used OSX since Panther, (I was a late switcher from OS9)
For stability:
1. Tiger & Snow Leopard
2. Mountain Lion
3. Yosemite
4. Lion
5. Panther
6. Leopard
7.Mavericks
Overall (Suability, new features, overall OS look e.g.)
1. Yosemite & Mountain Lion
2. Tiger
3. Lion
4. Snow Leopard
5. Leopard
6. Panther
7 Mavericks
Panther was a reasonable operating system, a little buggy but very usable.
Tiger was rock solid, a great performer on the G4 and even the G3, added great new features such as mail additions, SPOTLIGHT, Dashboard, usable safari
Leopard looked good, and had some essential new features such as quick view, coverflow, dock stacks, new mail features and Time Machine. However it didn't come close to Tiger Stability or performance.
Snow Leopard - Brought back the performance and stablilty that were sorely missing in Leopard. Very boring feature wise (Besides the excellent quick time X), but Leopard still felt pretty fresh which made up for the lack of features.
Lion - While most people hated Lion, I loved it. I still found it stable enough (More stable then Leopard, less stable than Snow Leopard) It was slower than Snow Leopard, but the slew of new features made up for it. The new look to applications and the finder was great. Autosave/versions, Airdrop, FaceTime, new multitouch gestures, full screen applications, Mac App store (although this came with the last versions of Snow Leopard), the new Mail application, iCloud integration and Mission Control.
Mountain Lion - ML was a suprise building on of Lion. Performance increased with this update, and several highly essential new features were introduced. Notifications and notifications centre, iCloud document picker, twitter integration, Airplay mirroring, unified searbar safari, iCloud Tabs, searchable launchpad iMessage and reminders & notes (I use both on a very regular basis).
Mavericks has been my least favourite of all the OSX versions I have used. Only a few of the features were actually useful to me. I use tags occasionally, I use interactive notifications all the time and Safari Keychain is useful. My Macbook became a buggy mess with Mavericks. Two different internal Hard-drives corrupted with Mavericks 6 times (Combined), there were constant crashes and glitches in the finder and many other apps, my computer slowed right down and battery life went out the door.
Yosemite - I LOVE the new design. After my hatred of Mavericks, Yosemite's design was a completely fresh breath of air. My Macbook is far more stable now and performs much faster than with Mavericks. I love SMS and Phone relay, Airdrop to iOS devices, notifications widgets, extensions, new spotlight, batch file rename, find my friends in messages, iCloud mail drop, safari tab view (Much better than the old one) and iCloud Drive.
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1. Yosemite
2. Mountain Lion (close tie with Yosemite)
3. Tiger
4. Snow Leopard
5. Lion
6. Leopard
7. Mavericks
I just don't understand the Yosemite hate, and the love for Mavericks. For me, it was reversed. Mavericks was horrid, sluggish, slow (and this is after three clean installs, endless troubleshooting, and many calls to Apple Support), while Yosemite (so far, on 10.10.2) has been smooth, and pretty much bug-free. And, yes, on the same hardware.
I didn't really use 10.3 (Panther) and older, so didn't include them on the list.
YES YES YES Mavericks was TERRIBLE. Barely any new features, but it was slow and buggy big time. Yosemite is much better and much more stable. Your List is very similar to mine actually
