Interested to read about the older Primes, but that is about all.

Exodus was quite interesting up until the point at which Prime and Megatron found themselves actually fighting their war. At first they were minor players debating a need for society to change, and we saw complexities in their relationships and with the wider population of Cybertron. However by the end they became more like forces than people, and made their story less interesting to read (although could be seen as analogous to an increased one-dimensionality as their views became more black and white).