At the risk of being overly blunt, that isn’t a very good question. The War Scythe and Fuzz Foundry are very different pedals with very different use cases. The War Scythe is a 3-in-1 multi-effect pedal, consisting of a modified Tone Bender Mk. III (a distortion-like fuzz), a Green Ringer (an octave up effect), and a Hoof (another distortion-like fuzz). The Fuzz Foundry is a boosted fuzz face with a bunch of resistors replaced with potentiometers that self-oscillates and makes glitchy sounds. So asking which one people prefer won’t tell you anything because they don’t really do the same thing. I’d say build both, as they’re both cool builds.