Jeez tough question.... Derby Premium would be my pick. I have almost exclusively switched to them for my DE razors but the Astra SS make it difficult.
Haven’t tried those yet. I have tried several others from the PPI plant including my favorites the GSBs. If the quality of blades from the PPI plant are any indication I’d probably enjoy those as wellI've been about this since creating this thread and so far from my limited experience with de blades I'd have to say gillette nacets for me tbh 🪒
I use only Polsilver SI and Wizamet SI blades (different names and packaging, but same blade) and have a lifetime supply (unless I'm wrong which I hope is likely) with maybe a thousand of them in stock.Glad I don’t have to make that choice for reals. So many good blades. But I could do with Wizamet Iridium-Super as my only blade if it came down to it. I have about 1500 on hand now, so that would potentially last me the rest of my life anyway.