Monero is the only crypto I hold, really.
- Private by default. With most other cryptos you can see all transactions on the blockchain (although you'll only see address hashes instead of names).
- ASIC resistant POW. Meaning you don't need specialized hardware to mine it but can do it with your PC (assuming it's fairly powerful).
- Transactions are cheap and fairly fast.
- Development is focused on the primary use-case of making transactions for payments, instead of making a "decentralized computing network" or similar.