I would slightly favour Moore but this is a very hard pick. I did a thread on this before seemed split. http://www.eastsideboxing.com/forum/showthread.php?t=94054
Conn isnt showing moore anything different than harold johnson showed him. Moore by late TKO. Not to mention archie has a great track record of thriving against tall fighters.
Johnson was a great defensive counter puncher, Conn was a fast clever boxer who used quick feet and hand speed to slide in and out on his opponents. Moore is in most top 2's at 175, Conn often quite a way down. Moore beat Johnson multiple times ,Joey Maxim and Nate Bolden. Conn beat Lesnevich x2 Bettina x2. I think Conn can pull it off by dec.