For some pots and uses I don't mind a disk bottom, but for the saucier my preference is single gauge all the way. The Viking, I discovered, comes with a lid as well, and while someone suggested French lined copper, I thing the clad pots are more suitable to my budget and temprement (sp).
Cooks Illustrated tested a bunch of sauciers, and while I don't look to them to make my decisions, ithey are another point of information. They liked the All-Clad and the Viking, and a few others that I didn't like or which are no longer available. I'll probably end up with the All-Clad or Viking. I like the AC because it's a little smaller and somewhat less expemsive, but I think the Viking may be better made by a small degreee.
I always taker my time when buying cookware (and most items), and always end up satisfied and with a product that gives me lots of use and lasts a long time.
Another nice thing about AC is that they make a smaller, 1-qt saucier as well as the 3-qt, and both come in several models - MC2, Stainless, Copper Core etc., so they offer a wide array of choices.