When I think of the best fixtures I think of the ones that are easy to repair in the future. So Moen and Delta are the easiest to work on.
Of the leading brands the others have mentioned: make sure you get their premium line; most have gone down-market with lines of lower-priced Chinese crap (example: chrome plated plastic instead of brass/stainless steel etc).
my family likes Kohler over Moen.
Pfister. If you have the cash.
Delta probably, at least most expensive.
Also Moen, Kohler, Kraus.