• Segwit support
• Lightning Network supported
• Full open-source
• Control over your Bitcoin
• Basic privacy which is it will generate new address after having transaction

All of these features are on Electrum wallet, if you're going to ask me for the best software wallet, I'd go with Electrum.

However, there's no safe wallet at all, they are still vulnerable to hacking or even stealing your personal gadget to hack your Bitcoin.  It all depends on us how we keep our private key safe.