So far I've decided on these guys as my canonical versions. nb: Legends is line not class.

Henkei Optimus Prime
Legends Megatron
Legends Jetfire
Henkei Seekers
Henkei Bumblebee
Classics Cliffjumper
non-combinable Strafe, Onslaught, Silverbolt all replaced by UW versions.
Legends Galvatron
CW Warpath
Legends Blurr

I can't decide between the various Scourge's so United Scourge is Scourge and the rest are Sweeps.