IMHO iOS reminders+do not disturb are (in theory) way more intelligent and practical. If I'm at home from 11 to 6 do not disturb unless some particular person is calling.
I've got a Galaxy Nexus and a NFC token in my keyring and I've used it at most 5 times in 4 months to change settings.
In the near future I see a phone intelligent enough to know if you are busy, sleeping, on holiday... just take a look at Google Now, it's quite clever