In the market for speiglau definition and just want one glass for the house. Either the universal or bordeaux. Drink mainly red and medium to full bodied ones at that, although occasionally drink a Chardonnay and lighter red. Any feedback / favourite on the 2 variants?
As nobody else has leapt in, I will offer a personal opinion - worth not much.
I have both of those, stored in the office kitchen, so that I don't have to resort to the Zalto collection downstairs.
Both the smaller and larger glasses are fine for either wine style, if you want only one-size-fits-all.
I would probably go with the larger, as you lean towards reds. Depends on the space in your dishwasher. More of the smaller will fit in one load!
[I did warn you that my opinion was not up to much in serious wine drinker terms. ]