Nolan is the perfect example of someone who shouldn't direct Transformers, and I loved his Batman flicks. Take Interstellar as an example. It's a fine film in many ways, and it's visually gorgeous, but it was so lacking in joy and took itself so seriously that I couldn't enjoy it that much, nor, being a scientist myself, could I take its "serious" science fiction seriously either. Meanwhile, I can take the crazy McGuffins and their effects in the TF and MCU films fine, because while those films certainly have serious moments, they also have plenty of silly things and aren't pretending to be serious, realistic science fiction either. So Adamson would be my first pick, and not because I like Shrek, but because I think he might actually a good choice for TFs, and after that I honestly am not certain.