What is the best dog food?

I have a 5 month old dobermann and want to feed a dry puppy food that is high quality and tasty. She was on Country Choice, which she was very healthy on and growing well, but she didn't like the taste, it would take her 45 mins to eat one meal! I am feeding her Bakers Complete as a go between because she loves it but I do not want to keep feeding her that since there are so many additives in it. There are so many brands nowadays that I don't know where to start, but I have my eye on James Wellbeloved and Burns. I am in the UK by the way.