JoeScylla
In my opinion, it is tedious to discuss whether Midjourney or Stable Diffusion is better.
Both are tools with their own strengths and weaknesses.
Midjourney
- Comparable to a ready-made consumer product.
- Easy to use and you get excellent results quickly.
- The feature set is limited. So you can't influence so well how the result should look like.
- Restrictions on what you can generate with it (gore, nudes).
- Fee required.
Stable Diffusion
- Comparable to a development kit. Technical, Difficult to use, different tools that you have to configure and use correctly.
- For excellent results you have to invest much more time.
- Extensive feature set (inpaining, outpaining, upscaling, ControlNet, many different models, LORAs, textual inversions). You can much better define how the result should look like.
- No restrictions on what you can generate.
- Free if you install it locally.