I can compare Liquid only to Ecash. But I think Ecash is better because you have decentralized mints, compare to liquid (only blockstream, the rest are smoking mirrors).

To dca better use real bitcoin (LN) and then convert to L1. From the beginning, you can control Satoshi and the fees are low.

Right now, even the boltz don't offer conversion from Liquid to "on chain". I heard you can do this in shitcoin wallet aqua. They also offer tether or other shitcoins, but I don't install shitcoin wallets.

Also, privacy is better on Ecash because you need to use some exchanges to convert shitcoin from blockstream to L1. On Ecash you just withdraw without middle man.

My layers:
1 - Bitcoin
2 - LN
3 - eCash
4 - Fedimint
5 - shitcoins

https://primal.net/e/note1wqwgff4urqlup0segjhd7a5jq6hc2tqedv27txepk7zjefkcqt5s2g8td9