I think Litecoin is the best one. Cheap and fast transactions. Presented at all exchanges and has grate liquidity (you can by and sell it with low margin). Low volatility (compared to other altcoins).
I agree. When can we see the update (new crypto)?
End of the next month is our deadline for this. Most probably it will be faster, we will let you know.
We will most probably add 1 or 2 new cryptocurrencies for betting.