I’ve noticed that while alloys can offer lighter weight and sometimes improved thermal conductivity, you really have to watch out for durability, especially with repeated thermal cycles in field use. Stainless steel, although a bit heavier, tends to hold up better long-term, as some studies have shown that microstructural fatigue is less of a factor when using higher-quality stainless variants with proper alloying elements.
On the fuel side, propane’s controlled burn gives you consistent heat distribution and energy use, which is great for avoiding hot spots that might cause uneven heating or structural stress. However, charcoal isn’t without its charm—it offers unique flavors and a more traditional setup, though at the cost of less predictable thermal behavior.
In my own experience and from what I’ve read in relevant studies, the choice really comes down to whether you prioritize precision and safety or a more rugged, flavor-enhancing experience.