Every time someone asks me which image generation tool is best, I give the same answer: it depends what for. It is like asking what is better, a hammer or a screwdriver. The question makes no sense without context.
After months using all three on real projects, here is my honest evaluation.
Midjourney: the cinematographer
Midjourney produces the most aesthetically consistent images. Its strength is everything related to photography, lighting, and composition. For product, editorial, and architecture it is my first choice without hesitation. Its weakness is precise control. You cannot tell it exactly where to place each element. It is like working with a talented photographer who has their own interpretation of your brief.
DALL-E: the obedient illustrator
DALL-E is the most obedient of the three. It follows literal instructions better than Midjourney. If I need a specific object in a specific position with a specific background, DALL-E gives me more predictable results. Its weak point is aesthetics. The images have a recognizable, slightly plastic look that a trained eye detects immediately.
Stable Diffusion: the customizable technician
Stable Diffusion is the technical option. If you need total control, custom models, precise inpainting, or production pipeline integration, it is unbeatable. But it requires real technical knowledge. It is not for designers who want quick results without touching code or configurations.
My verdict
For 80% of my work I use Midjourney. For specific illustrations and controlled compositions I use DALL-E. I do not use Stable Diffusion regularly because the setup time is not justified for my projects.
The right tool depends on your project, your technical level, and your quality standard. There is no absolute winner. There is the right tool for each situation.