Monero is much more privacy friendly.

Cardano's new Midnight sidechain is also being built to protect your privacy as well.

https://www.teddit.net/r/cardano/comments/z1w8at/cardanos_sidechain_midnight_will_protect_your/

Cardano's NEW Privacy Blockchain | Oshabot

https://www.youtube.com/watch?v=RsGHT17IzQ0

What's more is that because Cardano is already traded on most exchanges, Midnight can't be easily censored like Monero is because people can just exchange back to Cardano or use a blockchain bridge to exchange onto another coin and trade on to an exchange.

Currently the Rosen Bridge with Ergo is running successfully in private testnet and there is a bridge being made for Binance. There are about 2-3 ERC-20 converters on Cardano with 1 made by Input Output Global, 1 by DC Sparks with Milkomeda, and I think 1 with Blockfrost (could be wrong on the last one). An ERC-20 converter is basically a token bridge from Ethereum to Cardano but with the added benefit of being able to implement and run Ethereum smart contracts through the Cardano blockchain.

Monero is much more privacy friendly.

Cardano's new Midnight sidechain is also being built to protect your privacy as well.

https://www.teddit.net/r/cardano/comments/z1w8at/cardanos_sidechain_midnight_will_protect_your/

Cardano's NEW Privacy Blockchain | Oshabot

https://www.youtube.com/watch?v=RsGHT17IzQ0

What's more is that because Cardano is already traded on most exchanges, Midnight can't be easily censored like Monero is because people can just exchange back to Cardano or use a blockchain bridge to exchange onto another coin and trade on to an exchange.