Which coins are most used to actually buy stuff (services, things etc.) as opposed to speculation & as a means to purchase other coins or tokens?
(as money / a cash alternative, I guess)
I believe bitcoin is the best coin as cash alternative, simple reason is almost exchanger and on line shop receive bitcoin as payment but another coin is no. If you're a currency trader there's broker also receive bitcoin as their currency pair. Make time to surfing web like Pinterest, there's also a lot of people take bitcoin as payment for their skill. Never doubt bitcoin as cash alternative, maybe one-day bitcoin will become currency, not cryptocurrency. Good luck.