I counted these figures:
1/32
H.D.I 18
Alb.DII OEF. 9
R.A.F. BE2 9
Halberstadt D.II 9
1/48
Sopwith PUP 5
R.A.F. Re8 5
Voisin 3
Halberstadt D.II 3
Hannover CL.II 3
1/72
SPAD VII 4
Roland C.II 3
Sopwith PUP 3
M.S. N 3
May be I missed some when quoted, also have to add the Caproni Ca3 in 1/48 to my wishes so evens second place at 3 within this scale. If I remember well, Italeri promised the italian bomber in this scale long time ago as a future release.
Anyway, the 1/32 H.D.1 should be the best bet to produce...
Ciao
Giuseppe