Well, lets change it to the Orivs Hydros VS. Z-Axis.
For the money, definitely the Hydros. Other flyfisherman, one a fellow with, I believe some inherited endowment and a shop owner (so he has the money to buy and the access to use what he wants) sold his top of the line Sage models and replaced them with Helios rods. The 8ft. 3inch 3 weight Helios is, indeed, one of the true be-all, end-all, living, breathing S#!t of the Universe trout rods. Bar none. I can cast a heavy 6 wt to a 4 wt DT on my Helios 9 ft. 4 wt mid flex. (And did. I fished it all along the Madison and Gallatin with the 6 line, happy as a clam, easy as pie)
I don't think it's much of a practical choice. Now, if money isn't much of an object and the Z-Ax is PRECISELY what fits you, then it is what it is. But all my rods are somewhat different casting rods with flexes and speeds throughout the rod action continuum. Really, I can adapt and be quite happy with a rod that suits me OK. If anyone asked, I'd give the practical recommendation of not the Helios, but the newer HYDROS rod.
Now, whoda' thunk it?!? Me, ME! recommending an Orvis rod as being the functional, practical choice?!?
Hey, I call 'em as I see 'em. And cost counts!