and middle name???
I love [name]Milo[/name]. He’s current, yes (548 in 2007) but older too (highest rank ever: 314 in 1892!). Jaunty, sweet & masculine. I think he also feels a bit nicknamey. Won’t kill a kid, but [name]Miles[/name], nn [name]Milo[/name] gives him a formal option. And I’m all about Options! 
I think [name]Milo[/name] works best with longer middles. Some random thoughts:
[name]Milo[/name] [name]Julian[/name]
[name]Milo[/name] [name]Maximilian[/name]
[name]Milo[/name] [name]Alexander[/name]
[name]Milo[/name] [name]Constantine[/name]
[name]Milo[/name] [name]Alasdair[/name]
[name]Milo[/name] [name]Raphael[/name]
[name]Milo[/name] [name]Solomon[/name]
[name]Milo[/name] [name]Amadeus[/name]
[name]Milo[/name] [name]Ferdinand[/name]
[name]Milo[/name] [name]Jonathan[/name]
[name]Milo[/name] [name]Christopher[/name]
[name]Milo[/name] [name]Nathaniel[/name]
[name]Milo[/name] [name]Phineas[/name]
[name]Milo[/name] [name]Theodore[/name]
[name]Milo[/name] [name]Taliesin[/name]
[name]Milo[/name] [name]Lysander[/name]
[name]Milo[/name] [name]Lazarus[/name] (I may swipe this!)
[name]Milo[/name] [name]Ishmael[/name]
[name]Milo[/name] [name]Ignatius[/name] (a family name for me, I may swipe this one too!)
[name]Milo[/name] [name]Benjamin[/name]
See, anything three or more sounds awesome. I suppose one syllable would work too, but I’m not sure I like it myself, some examples:
[name]Milo[/name] [name]George[/name]
[name]Milo[/name] [name]Graham[/name]
[name]Milo[/name] [name]Hugh[/name]
[name]Milo[/name] [name]Beau[/name]
[name]Milo[/name] [name]Blaise[/name]
[name]Milo[/name] [name]James[/name]
[name]Milo[/name] [name]John[/name]
[name]Milo[/name] [name]Keir[/name]
[name]Milo[/name] [name]Klaus[/name]
[name]Milo[/name] [name]Pierce[/name]
[name]Milo[/name] [name]Rhys[/name]
[name]Milo[/name] [name]Scott[/name]
[name]Milo[/name] [name]Hayes[/name]
[name]Milo[/name] [name]Dean[/name]
[name]Milo[/name] [name]Flynn[/name]
[name]Milo[/name] [name]Claude[/name] (ooh, I may swipe this one too!)
[name]Milo[/name] [name]Charles[/name]
[name]Milo[/name] [name]Boone[/name]
So, maybe that works too, depending on how long your surname is. I hope that helped some!
Edited because a personal spellcheck doesn’t always catch them all first shot!
I [name]LOVE[/name] [name]Milo[/name]!
[name]Milo[/name] [name]August[/name]
[name]Milo[/name] [name]Augustin[/name]
[name]Milo[/name] [name]Atticus[/name]
[name]Milo[/name] [name]Bennett[/name]
[name]Milo[/name] [name]Colin[/name]
[name]Milo[/name] [name]Conrad[/name]
[name]Milo[/name] [name]Clifton[/name]
[name]Milo[/name] [name]Christian[/name]
[name]Milo[/name] [name]Dashiell[/name]
[name]Milo[/name] [name]Edward[/name]
[name]Milo[/name] [name]Everett[/name]
[name]Milo[/name] [name]Finnian[/name]
[name]Milo[/name] [name]Franklin[/name]
[name]Milo[/name] [name]Gideon[/name]
[name]Milo[/name] [name]Harrison[/name]
[name]Milo[/name] [name]Henry[/name]
[name]Milo[/name] [name]Jasper[/name]
[name]Milo[/name] [name]Jameson[/name]
[name]Milo[/name] [name]Philip[/name]
[name]Milo[/name] [name]Sebastian[/name]
[name]Milo[/name] [name]Samuel[/name]
[name]Milo[/name] [name]Thaddeus[/name]
[name]Milo[/name] [name]Thomas[/name]
[name]Milo[/name] [name]William[/name]
Good luck!
Like the first poster, I prefer [name_m]Miles[/name_m] as a more formal option - better for a kid to grow into. I do like [name_m]Milo[/name_m] a lot, but there’s a voice in the back of my head that just keeps going back to the movie [name_m]Milo[/name_m] and [name_m]Otis[/name_m], and associating [name_m]Milo[/name_m] with a pet’s name. (Sorry to be brutally honest)
It’s cute, but I still automatically think of dogs.