I've spent at least a few days on each of these skis (except the J Skis Vacation which I've only had a couple of runs on). My personal pick, especially for the east, would be the 18-19 ARV 106. The overwhelming majority vote here is clearly for the Kartel 108, but I'm gonna go with the unpopular opinion here and say that I find they have too much rocker when it gets icy/hard snow conditions, especially if you're going to be hitting rails and losing most of your effective edge underfoot, with such a short running length anyway. I love the ON3P durability and they float great on deep days, so I can't say they aren't a good option, but for me they are more of a west coast/big resort ski though.
I prefer the way the 106 (and the Sir Francis Bacon) ski in what would be fairly typical east coast, hard/icy/shallow snow conditions because they have much mellower rocker profiles/more effective edge. I marginally prefer the ARVs to the Bacons, and the new 106 for 18-19 is even better. I think they float a touch better in deep snow and feel more solid, whereas the Bacons feel quicker/lighter thanks to a shorter radius but don't feel quite as stable/tough. I rarely end up skiing in tight spaces so I prefer the ARV, if I skied more tight trees, I think I'd prefer the Bacon.