bittrex or polo is the best exchange for this token to do the initial trading when this one launches.
Polo might list after some time if this project will be VERY successful, bittrex might list if the dev will pay some good money to the exchange owners
I agree with you, I use and have always used Bittrex, until today I have no problem with my coins or transactions, after this FUD and distrust of Poloniex not leave many coins, only when I sell some!
I also avoided poloniex for now. Since they keep on lagging whenever a good trading action is happening. I think LNK is best to be in bittrex because after Polo, Bittrex is next bigger exchange and I have not experience any lagging on this exchange.
As for what exchange is better for coins in general it would be Polo since more people seem to be active on that than on Bittrex.