1. I much prefer Elizabeth - why miss the opportunity to use a Z when it's the more common spelling?
2. I'd most likely use Elle or Ellie, though Beth isn't bad.
3. In English: Eliza. In French: Lisette (though I also like Elise).
4. Elizabeth is relatively common as a first name where I live, across all ages. It's even more common as a middle name.
5. Yes, it's a fairly boring middle, imo. I vastly prefer it as a first name, which doesn't sound tired because of the many nickname opportunities (though Liz is played out).
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