I like names that produce a mental image.
Emily, you can imagine a pretty girl with a cute or sexy attitude, depending upon how where the Emylee's you met.
Samantha, you can imagine a lot of things, especially a strong woman with a very special heart, but it`s a pretty name.
Katherine, a name that inspires royalty. Or maybe not :3
Laura/Lauren, you imagine a pretty girl with an outgoing personality.
Megan, a strong girl with a light headed attitude.
Disclaimer: this is how I imagine the girls by those names. Any resemblance to your mental images are pure coincidence.