Is your prep, lather and technique what you would call "very good"? It could be a minor point as that, possibly.
i am assuming you have gone through a few DEs and found what works best for you. As has been mentioned, blade preference is very personal and you will have to make the final decision.
It seems like you have tried a few good blades and i am surprised you have not gotten on well with at least one. What is/are your razors? Have you tried cold water shaving?
My only other suggestion with blades would be Super Iridiums, but, again, YMMV. Good luck.
Celestino ~ Laughter, Love and Shaving!