How would you pronounce Louis?

The wife and I are debating the spelling of our future child’s name. I like Lewis, she likes Louis. I’m worried that with the Louis spelling, people will pronounce it as Louie (like the king). She says people won’t. She thinks the spelling of Lewis is ugly, and I don’t.

She also likes Louis because she likes the nickname “Lou” or “Louie” (how I think it’ll be pronounced anyway) but doesn’t want it spelled Lew.

Edit: We live in the Deep South of the United States