When people use paper wallets like MyEtherWallet, and follow all the protocals like using a completely separate offline computer when sending transactions, then use the signature hash to verify back on the online computer for verification, how would you rate the safety of a paper wallet vs a hardware wallet like a Trezor?

Please include these protocals in your assessment as well:

• Private key is not openly displayed on offline computer or online computer, and is hidden/ protected where it is
• Private key is never utilized at all on online computer

Thank you.