Well, English is stupid in that A-ry-a and Ar-ya are both perfectly legitimate readings. Pretty much any name that ends with the -ia sound (not a heavy ee-ah as you say, but a lighter sound) just sounds really pretty, girly, and wussy to me. Ending a girl's name with -a just makes it feminine, but the -ia adds pixie dust and rainbows.

He looks too old to be Jon imo, though he does look significantly younger without the shadow. He has the look for Waymar, though I admit I saw Waymar as more of a prettyboy. His Viserys monologues are great too.