So I am subtracting the heavy ones like Alternity,flatternity,IDW,cloud world and Trans techs. So what’s the strongest universe? Edit:Same for G1
In Bayformers, Star Harvester in ROTF could destroy a star and the Space Bridge tech in DOTM could destroy most of Cybertron in seconds and that same Cybertron was larger than Earth. Quintessa also could move a moon-sized Cybertron through space. I think Bayverse's tech destructivity is underrated.
Unicron Trilogy. No other universe has all the characters routinely borrow power from Unicron (via the Minicons) or Primus.
UT they literally have have mini cons who can turn into a super weapon ship which can blow up Planets.
I don't think you can pick. You would have to let the different universes duke it out and make rips in space-time in the process. That said, I would say the Onionverse. Shrek the DeShrekitcon Ogrelord can be blown into thousands of pieces...and each one of those pieces of his body will grow into a new Shrek. He's so resilient, that he can recover from any physical injury of physical death, and only an Onionzooka with layer-piercing rounds can pierce through the layers of his Spark and permanently destroy him...and there are very, very few of either of those in existence.