I've read Win Friends and Influence people, and it's a pretty good book. My all-time favorite book (or books, I guess) is the Lord of the Rings trilogy
yeah i also have read think and grow rich , it was the first self help book that started this whole self improvement thing and this book is a compressed version of The Law of success by Napolean hill . if you really want a thorough knowledge read Law of success
I believe "Think and Grow Rich" is a great starter for anybody interested in reading these styles of books. My personal favorite is Carnegie - How to Win Friends, and I just finished reading The Richest Man in Babylon while sitting on the beach in the DR! Only one I havent read here is The Prince...
So many favorite book, but the best that I do re-read every year or so is Catch-22 by Joseph Heller. It's a funny book in so many ways. Try it. Else, Atlas Shrugged by Ayn Rand. Anne of Green Gables Foundation Series by Asimov
From the books you have listed I prefer most "The Prince" and although I have it in my library , from my books I would have to pick "Dune" and " The Vor Game" for my favorites, but I do change my preferences