I've always been a George London fan, at least in Wagner's heldenbariton parts. His timbre is distinctive, his diction exemplary, he sounds like a Wotan to me, and he's in fine voice here. Ferdinand Frantz is probably too little remembered now, but he's fine too. This recording is from 1948 and he sounds in prime vocal estate; his best known recordings are his Sachs, from 1952 (I think) and the complete Furtwangler Walkure from 1954, where his voice has become heavier and more opaque. I prefer the tonal steadiness of both of these singers to the more vibrato-ridden Hotter, and I find it hard to choose. I think I'll take Frantz, who sounds better here than his later recordings (which are still good) led me to expect.