Adley. There is a girl on The Voice with this name. I like it but I don't know about the rest of the public. What do you think?
It ought to work. Madison opened up the way for Addison; Madelyn made Adelyn more appealing; and I've heard people mentioning Ayla now that we've gotten used to Kayla. The name Hadley is increasing in popularity (according to the Social Security Administration, it went from #921 in 2000 to #216 in 2010---and that doesn't count spellings such as Hadleigh and Hadlee and Hadlie), so Adley seems like a natural next step.
And in fact, in 2010 there were 79 new baby girls named Adley, 50 named Adleigh, and 20 named Adlee. (A few more were named Addley and Addlee, but for me that brings to mind the word "addled," so I'd stick to one D.) Another 18 were named Atlee and Atleigh. And 17 were named Atalie---perhaps helped by the popularity of Natalie. I also found 123 named Adalee, 82 named Adalie, and 38 named Adaleigh, but I'm not sure if that's Ada-lee or Adda-lee.
The nickname Addy will be both a selling point and a deal-breaker: some people will be looking for another way to get the nickname, and others will think it's unfortunate that she'll get lumped in with all the other Addys.
Let's have a poll over to the right to see what everyone thinks of it. [Poll closed; see results below.]
Poll results for "What do you think of the name Adley?" (356 votes total):
I love it! I'd want to use it! - 10 votes (3%)
I like it! I'd want to consider it! - 47 votes (13%)
I like it for someone else's baby - 127 votes (36%)
No particular opinion - 28 votes (8%)
Slight dislike - 112 votes (31%)
Strong dislike - 32 votes (9%)