Best Bitcoin Wallet Armory | Multi-Signature Cold Storage
Hierarchical Deterministic
Multi-Signature
Open Source
Wallet Security
Platform
Wallet Anonymity
Wallet Ease of use
Armory is the most secure bitcoin wallet application. It comes with advanced security features that make it complex due to the depth of options. Although, perhaps overkill it gives peace of mind for the paranoid with cold storage features and more.