Usually i dont like to say a specific coin coz it sounds like shilling. But right now i would probz go with DGD sincee it's like a safe heaven for people to store money when BTC is going down.
Do not fortget that Nano is so light weight that desktop wallet is actually full node. With pruning and universal blocks it will be way-way more light weight that it already is.
Eventually banks will embrace Blockchain and use it to their advantage (don't know about BTC specically tho). But blockchain will require a HUGE increase in efficiency before it becomes commonplace.
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