To the OP,
We've used multiple different serration patterns over the years.
While we like/use the two-step pattern, we've seen many come back with the tips of the tall serration bent or broken. I feel the proper blade steel must be in line with this pattern, otherwise damage is possible. Depending on the matter being separated, one could see immediate harm.
It does seem that users have a tendency to think serrated blades are indestructible, can handle jobs they're not intended for, thus the damage. Unlike a plain edge, there is no recourse in making damaged serrations look new once again. Of course there is the "look" that a two-step pattern brings...very aggressive, which can be a draw for many.
With the scalloped serrations, we have found them to be very effective with less tendency to rip, tear, or bind. Personally I don't think they "look" as cool, but from shear performance, especially over time, the scallops we've seen hold up better without sacrifice.
In either of these two cases, when utilizing serrations in general, your cutting technique needs to be adjusted to fit the edge configuration and job in front of you.