This is the list I originally found:
http://www.openculture.com/2014/01/david-foster-wallaces-lists-of-his-favorite-words.html
This is a list I found on Merriam Webster (I LOVE the word "defenestration", I need to remember that one!^^)
http://www.merriam-webster.com/top-ten-lists/top-10-peoples-favorite-words/defenestration.html
These are the 100 most beautiful words in English - apparently:
http://bourbonsoup.com/archives/7554
And this is a list of someone's favourite British slang terms (quite funny, I think...):
http://www.anglotopia.net/british-identity/humor/top-100-most-beautiful-british-slang-words-and-phrases/
Sooo... Maybe you can use those sometime... :)