Edward is my son's name (and was my father's) and Elliott is my grandson's name, so I am endorsing those.

If we are playing "one of these is not like the others," then Royce seems to have a different vibe than all the others.

Felix is my son, and if I have a second boy he would be Arthur, Eliot, (or Casper), so I like your list!

The names on your list seem to vary a lot in style. This is my gut sense, not based on any research into the stats:

Some feel very classic/ubiquitous to me: John, Peter, James, (Elliott?)

Some newly trendy classics: Leo, Henry, August, Edward, George

Some known but spunky: Miles, Emmett, Ezra, Felix, Edwin

Some currently unpopular classics: Louis, Vincent, Paul, (Arthur?)

As previously mentioned, Royce seems to be an outlier. 

You may look at these groupings and see if one feels more right than the others as a first name for your baby. Then you could look to a different style from your list for the middle name. 

I am biased towards Elliott because I have an awesome nephew with that name (though he's Elliot with one 't').  After that I lean towards Felix, Henry, and Peter.  That being said, Ezra has been growing on me of late.

I don't think there are any clunkers on your list, however.  

You have another great list of names for boys!  My favorites are Arthur, August, Henry, Leo, and Vincent.  I think those names are the most familiar and fresh-sounding without being too "out there".  While George, John, James, Paul, and Louis are classic names they tend to sound a little dated to me so they are not my personal preference.  On the other end of the spectrum Ezra, Felix, and Royce are fun and modern-sounding but they are not quite classic enough for my taste.  Elliott is a nice choice but I have met a few female Elliott's recently, and while I MUCH prefer it for a boy, the unisex trend is just something to think about.  Good luck!