Over the past couple years, I've cooked steaks every way imaginable. Numerous times Sous Vide and then finished over charcoal, Memphis open flame, cast iron, pellet grill with Grill Grates, or a George Foreman grill. I've reverse seared on the Pro. Pan fried them in cast iron with butter, Ghee, or oil. Straight high heat charcoal. Memphis open flame. Pellet grill with Grill Grates. To me, charcoal definitely imparts a unique taste that I cannot replicate any other way. The closest I've come in taste is a reverse sear on the Pellet grill, but it was still different.
Some of the best overall steaks I've ever made were prime New York strips that I threw in sous vide, then seared over charcoal. It was a good combination of tenderness and flavor. However, steaks seasoned and just cooked hot and fast over charcoal still have more or better flavor to me. They just aren't always as tender as when you Sous Vide.
After all my experimenting, I'm almost ready to revert 100% to charcoal only for steaks except when the weather really prevents it. Sous Vide will be more for chicken and vegetables. I need to study more on aromatics or something, but I'm not the biggest fan of the lack of flavor on beef cooked primarily sous vide. I'm also leaning towards learning towards buying only whole tenderloins and learning to break them down myself. Any of you try that and have any advice?