I'm right here with ya! I absolutely adore the name Elizabeth. It's simply elegant. To me, the name seems like it would age wonderfully! I could picture a 2 year old with this name, and a 50 year old with this name! If people choose to go by a nickname, there are so many options,and I love that(though I prefer "Elizabeth" as opposed to the nicknames) I know tons of people that do say they prefer the more "trendy" Kaylee or other names..... to me, they just don't compare to the elegance of Elizabeth. To me, a name like Kaylee is adorable for a younger child, but I can't picture it aging as well as Elizabeth does.
I love your other favorites too. I really like Kaitlyn! My niece's name is Kaitlyn, it's an adorable name, that,again... ages well! Of course I absolutely adore Sophia, as that is my daughters name :) Jennifer is very nice too, though not my favorite.