TTL flash for the simplicity and speed
Okay, true strobists might recoil in horror, but I often prefer using TTL flash to sweeten an image when shooting on location. I just get to the final image faster than if I had gone the more methodical route of manual flash.
For some situations, manual flash is the only way to go. For example, when your subject is static in relation to your lights and you have to get consistent lighting, image after image, then manual flash makes the most sense. But for times where you want to shoot faster, and shoot on the run, I find that TTL flash is the easiest and most fun option for me.
This image of Aleona was from a recent individual photography workshop in New York. As a starting point in explaining how to balance flash and ambient light, we initially work with an easy scenario where the available light isn’t harsh, but also not all that exciting. Now we can easily finesse it with a bit of flash from a softbox …