I'm interested in which exchanges are the best (and easiest) to float a new alt coin onto.

So far my investigations have found:

• Yobit considers adding a coin for 0.1 BTC and takes 4-7 days (https://yobit.net/en/addcoin)
  
• Nova Exhange it costs 0.2 BTC (https://novaexchange.com/addcoin)
  
• Poloniex adds a coin (no charge mentioneed) but does not give a time frame so no idea if it actually works (poloniex.com/coinRequest)
  

I'm especially interested to hear from people who have floated coins on an exchange and can relay their experiences, but anyones guesses or knowledge is welcome