I didn't think any of the Transformers (Autobot or Decepticon) sans Prime and Bumblebee had much personality. So, yeah, I would have had a non-reaction too had Ratchet or Ironhide died.
Agree for the most part.
Bumblebee was my favorite, then Prime.
Jazz was number 3 for me, and much higher than all other Autobots and Decepticons.