Who are your favourite characters in this era, and why?
Rhinox was my favourite character, so sturdy and reliable.
Waspinator for just being the whipping boy that could never catch a break
Tarantulas for being evil, menacing and never truly revealing his loyalties or intentions.

Which characters were disappointing or under-used?
Don't really want to start sounding like a broken record, but Tarantulas had a lot of character development and storyline potential, but it we only ever scratched the surface. Still feel a comic series showing some of his other machinations would be a great read.
Ravage was used as a link to G1, and his death was great, but I always have wondered what could have been. To a lesser extent, Terrorsaur and Scorponok too, but they were far more one dimensional.

Who would you have liked to have seen more of in this Series?
Same as above in a way, but would have to say, more of everyone would have been great, but the way the series was written in the final arc made it impossible to not move onto a sequel. More time in season 2-3 before everyone went transmetal II would have been fantastic.