You don't have any Dumas on your list yet. That's an oversight that definitely needs to be corrected.
My favorite is The Count of Monte Cristo. I found that the Three Musketeers relied too much on knowledge of ancient French culture and politics to be really enjoyable - it's a satire on upper class France a few centuries ago, so it's harder for modern readers to get into. The Count of Monte Cristo is also an excellent social commentary and moral tale while being a better story.