ok, i chose to read the whitepaper . the main difference to walton is that walton is building on his own chain, so walton has more challenge but therefor it can scale more because other similar projects can build on walton´s chain. according to the whitepapers ary is not far behind walton, ary will offer masternodes, according to telegram and admins you should have around 50k - 75k.

conclusion : walton will be bigger but ary has more room to growth in short and mid term