I am named after my grandmother. I was given the name in the 70s and it was deeply unfashionable then. Just after I was born my Dad noticed a load of them appearing in the obituaries and really felt like they'd made a bad choice. 
I've never met another person with my name, was never able to get anything with my name on it as it was so un-used and you'd never be able to guess my age from my name.
Ironically, the name is now so popular that it is being over-used, people roll their eyes in the 'not another one' sense, and girls with the name now will be easily dateable. I suspect it will drop like a stone in the next few years from sheer over-use.
DS has a name which is also currently deeply unfashionable - nowhere near the top 100 - in fact, I'd be surprised if anyone else used it in the year he was born. But it's a well known name that everyone has heard of. Maybe by the time he reaches his 30s it will be back in vogue again, like my name is now. He is known by a diminutive of the name however, so much so that his actual name doesn't feel like his name.
DD has a timeless, classic (Shakespearean) name - not common or dateable but everyone's heard of it.
I was very much influenced by my own name - and liked not being one of several Sarahs/Joannes/Claires of my age. I was absolutely keen to avoid names like Ruby, Ava, Olivia, Evie, Archie, Alfie, etc, as they're really going to date due to popularity. I am pretty certain my DC will be the only ones in their class - DS without a doubt!