I like
Emeric alright, probably because it sounds pretty close to one of my top favourites (
Emrys). Interestingly enough, one of the only babies born recently to someone I actually know was called
Emmerich. Anyway, I was pleased to hear it used and I could not then, nor can I now, think of any reason not to use it. I prefer
Emeric over the other options you've listed only because it looks cleanest to the eye. I've been pairing
Emrys with
Nathaniel or
Nathaniel Hugh lately and I think both options also sound nice with
Emeric. Some other choices are
Alexander, Alasdiar,
William or just
Hugh.