Why waste your time? Fat, reverse-cambered, rockered skis are where it's at for hard snow skiing. I have customers tell me this every day, so there must be something to it!
In all seriousness, you can't go wrong with any of the skis listed. I wish I could be on the slalom race stuff, but nobody brings it to the industry demos anymore, at least not out West. We usually have a GS race carver handy, and the odd GS race ski, but slaloms are out of favor on our bigger mountains. The one thing I always found out about skiing a race slalom: it wore me down after a few runs if I skied full-energy. I owned an Elan SLX stock a few years back, and as long as I kept it on edge, I could have run a super-G on it. I ended up migrating toward mid-length carvers as a compromise, instead of the powerhouse slalom ski. Stuff like the RIPstick and Progressor seemed like good carvers with little compromise, although not really suitable for slalom. Another ski to consider, although not a true race ski: Elan Speedwave 14 in a 168cm. I put some Masters' guys on them and they were being used as a combo slalom/freeski.