Bip39 Seed. Because of the cryptographic structure of BIP-39, a weak passphrase doesn't lessen the protection of the opposite wallets or assist reveal the seed words. What constitutes a "excellent wallet" is one which has clear, very easy to obtain documentation on supported BIP specifications, derivation paths, and Restoration procedures. https://thebookmarklist.com/story18727725/bip39-word-list-https-linktr-ee-bip39-not-known-factual-statements-about-bip39-list