Layla and
Leila are LAY-lah (so no, I don't think
Leila as LAY-lah is weird at all).
Laila and
Lila are LIE-lah.
I like
Leila a lot, but
Layla looks tryndee and sloppy to me.
Lila is gorgeous and I also like
Laila, but the latter would be a spelling and pronunciation disaster.