If a person makes an incorrect Bracha on food – is it the same, better or worse than not making a Bracha at all?
It depends on which bracha had to be said and what was said. If the bracha that was said is good in retrospect, (b’dieved) i.e. saying hoadomo on a fruit, then it is better then not having said anything at all. However if the bracha didn’t count at all, i.e. he said haetz on a vegetable, then it would have been better not to say it in the first place, because not only was he not yotza the bracha that had to be said, he also said H-shem’s name in vain.