Own both, and if you can only own one, buy the material that suits the cooking you actually do. That sounds like a non-answer until you see the one spec that drives everything else: Made In’s own material comparison puts clad stainless with an aluminium core at roughly 2.5 times cast iron’s heat conductivity, responding to the burner in seconds — and notes that cast iron’s advantage is not conductivity at all, but stored heat. Enamel does not change that; it is a glass layer fused to the same iron.
So: stainless is the fast, responsive, light, low-maintenance option. Enameled cast iron is the heavy, slow, heat-hoarding one that holds a simmer unattended and does not care what acid you put in it. Nearly every practical difference below is downstream of those two sentences.
What to look at before you choose
1. Whether your cooking needs stored heat or control
A braise wants a vessel that holds a steady low temperature for three hours without being babysat; that is a mass problem, and 12 to 19 pounds of iron solves it. A pan sauce wants a vessel that cools the instant you pull it off the heat; that is a responsiveness problem, and stainless solves it. Buying the wrong one for your cooking is how people end up with a beautiful pot they resent.
2. Your cooktop — and this one is published
If you have a radiant glass or ceramic cooktop, the cooktop maker has an opinion. GE’s own material-by-material list rates stainless steel as “highly recommended” and says “Porcelain/Enamel pans give good performance only if they have a thick, flat bottom”— while bare cast iron “is not recommended” because a burr or rough spot will scratch the glass, and because once hot it holds an intense amount of heat that can trip the cooktop’s temperature limiter. Whirlpool publishes the flatness test: lay a ruler across the base, rotate it, and look for light underneath.
Enamel sits in the middle here on purpose — it has a smooth glazed base rather than raw casting, which is why GE treats it as conditionally fine rather than not recommended. The full smoothtop decision, including which pans to buy for one, is in best cast iron for a glass top stove.
3. The restrictions you will live with
Stainless has almost none: dishwasher, metal utensils, scouring pads, the broiler. Enamel has several, and they are all published. Lodge’s Essential Enamel pages state oven safe up to 500°F, hand washing recommended, metal utensils not recommended, not for the dishwasher, and not made for use on a grill or over a fire. The lid knob is usually the real ceiling: Le Creuset publishes 480°F for its black phenolic Signature knob and 390°F for the older Classic knob, with metal knobs taking the full 500°F; Staub publishes 250°C for its knobs and a 200°C maximum for silicone handle covers.
4. Weight, and whether you will lift it full
The published empty weights for the enameled pots in our registry run from 11.5 lb for Le Creuset’s 5.5-quart Signature to 19.33 lb for Lodge’s 7.5-quart. Add a braise and you are moving over 20 pounds from a hot oven, with two loop handles and oven mitts. A stainless pot of the same volume is a fraction of that. This is not a minor consideration and it is the one people discover after buying.