Midjourney remains the generator people reach for when the image needs to look good with the least effort. Its default rendering of light, texture, and composition is more refined than the competition, which is why it dominates among designers and marketers who care about the final aesthetic more than literal prompt-following.
The tradeoff is control. Midjourney interprets rather than obeys, so if you need an exact layout or readable text in the image, DALL-E or Imagen will get you there more directly. For mood, concept art, and anything where "make it beautiful" matters more than "make it exact," Midjourney is still the standard.