Blade selection is probably the most "YMMV" topic in these forums. Personal preference reigns supreme here, as every blade on the market will have its fans and its detractors. For me and my face, I've settled on three blades for now, and each blade works well in a specific razor. Israeli Red Personna in my Merkur 39C Slant, Voskhod in my Maggard's MR5-v.3, and Gillette Nacet in my Merkur 34C.