Aliza is Hebrew and means "Joyful."
Eliza is more-so just a short form of Elizabeth.

I like Aliza for the meaning/sound, but I feel like Eliza looks a lot more traditional and it's how most people would think to spell the name.

Which would you choose if you had to pick?

I like Eliza

Depends on how you want to pronounce it.

Uh-liza or Ee-liza

I like the spelling and pronunciation of Eliza better.

Quoting SAFFY™:" Depends on how you want to pronounce it. Uh-liza or Ee-liza"

Yeah... I really don't know. I think both sound fine.

Eliza.....................

Eliza is what I would pick.