Can't really tell, of course there's no definite BETTER ski, but the ARV seems like it would be a little better for jibbing and BC booters while the Prophet is pretty much mostly for big mountain work. Basically the ARV is a one quiver ski for the park jibber who likes to do 50 park 50 all mountain, the Prophet is more towards all mountain than park. The chronic wide is more like Line's ARV.
I tried the Armada ARV for heliskiing in NZ and I wasn't at all impressed. I normally ride atomics and I felt like I was riding on overcooked spagettii on the ARVs. My M:EXs are soooo much better in powder - I kept thinking - why did I listen to the heliski operator and bring these things out? I don't know what they're like for jibbing but my friend and I that tried them in the powder thought they were rubbish.