Are you more excited about Mavericks or iOS 7?
Although iOS 7 is the biggest thing to happen to iOS since it was called the iPhone OS, I can't get over the excitement I have over OS X Mavericks. iBooks, Maps, Safari improvements, multi monitor support, iCloud keychain, notifications, Finder tabs and tags, efficiency improvements, UI improvements, etc.
And the fact that they chose a new naming scheme after places in California to support another decade or more of OS X versions just made me so glad that Apple is strongly behind the Mac and not planning to shove any toasters into this fridge!
What about you? iOS or OS X?