I like to compare them to beer
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Bitcoin - Labatt Blue
Litecoin - Molson Canadian
NXT - Stella Artois
BitsharesX - Erdinger Dunkel
Bytecoin/Monero - Bud light
Ethereum - Heiniken
How many beers can you drink? Me personally I like Stella and the Erdinger. Bud light is nice on a hot summer day. This fall I'll be drinking the Canadian once my scrypt asics arrive. Labatt Blue for BTC because that was high school beer. The first ... the one that started it all.