market cap is 100% meaningless!
it is just multiplication of price and supply. and it is with all the 4 coins after bitcoin until LTC.
the 72 million premine of ETH, the god knows how many billion coins of XRP and about 90% of 16.4 million coins of BCC has never reached the market.
exclude the fake coins of altcoins and let the BCC deposits open and people be able to deposit that 16.4 million (of course a very small portion of it will ever move) and then compare market caps.

as far as i am concerned litecoin is number 2 in that list so far.