You need to take some time with the Arcus, as Louis has suggested elsewhere, in order to get the fullest sound out of it.
I'm still figuring mine out, I think. I brought it to an orchestra rehearsal last year and played it on stage for two other musicians (flute players sitting about 50 feet away). I also played my Reid Hudson. Both flute players immediately preferred the Arcus, without knowing which bow was which.
A few weeks ago, I did a similar experiment for my teacher, and he basically made a face when I played the Arcus and said "it sounds like it's hollow". He was a lot closer than the flute players, and we weren't on stage, so I wonder a bit if there's a difference in how the sound is perceived from a distance versus up close.
I really like the Arcus for orchestral passages that take a lot of rhythmic precision because it sounds very clear and it's easy to "wiggle back and forth". However, I've got a couple solos coming up next season and I'm 99% sure I'll do those on the Hudson.