Much agree on both the past and current versions of the Guigal Cotes-du-Rhone Blanc. My champion QPR at the moment is its analog, the Jaboulet Cotes-du-Rhone Parallele 45 Blanc. It has not had the same consistency as the Guigal for me but the 2020 vintage punches well, well above its weight for 8$ at Costco. Its main component is grenache blanc but the viognier sings the lyrics in that band.