Superior and simple privacy. Fungibility. Cheaper/faster txs (without the trade-offs and hastle of *sovereign* LN).

If you believe Monero will not make significant gains, or think it will go to zero:

Only have small amounts in reserve. Don't hodl large amounts long term. Use it. Best of both worlds.

imo, so far:

Monero is a better MoE.

Bitcoin is a better SoV.