I have also a problem with cryptopia withdrawal. Was first time when this was happening to me, but i receive the BTX withdrawal after 4 hours.
Yesterday I had a withdrawal from Cryptopia, took about 5 mins and the coins were in my wallet. No problems there.
Cryptopia withdrawal no problem for me too. Of course I want to trade on the exchanges with a large volume, but it's terrible to freeze funds for a few days before airdrops. I hope hitbtc will solve their technical problems in the near future. Coinexchange.io probably would be a good exchange for expansion.