My full given name is super Irish and Catholic. My friends used to add a "sister" in front of it because it sounds almost like a nun's name.
Michael still tops most lists, I believe. Boys names seem to have more longevity than girls and are way less trendy. Michael, John, Joseph, and Christopher have had some serious staying power. Also, Lucas and Andrew are two traditional names that weren't huge when I was kid, but have started to crop up again in the last decade or so. I can only really recall a few "newer" boys names that have dominated recently. Aidan comes to mind. As far as girls, my eight year old has quite a few Abbys and Ellas in her grade as well.
Saw Jennifer Jones mentioned upthread. What a sad life. My oldest shares a name with the heroine of David O's greatest adaptation. Though she's not named after her.