Bard image creation is currently not even close to DALL-E by a mile. The word restrictions are insane, no sadness, no poop, no cry, no hurt. Eyes are worse than 2021 Dall-E. For example, I test the dall-e with the prompt "Create an image of a crying woman". It created very nice ones. Bard ignores anything about women for unknown reasons. Anything with banana as well. Women + banana ignored immediately.
Politically correct AI is super frustrating. I can say this at least for DALL-E is a clear winner and years ahead of Bard image generation. It is worse than self-hosted stable dif.