I’ve always like interpretations of Prime’s Cybertronian form, which tends to make him look like a futuristic tank in vehicle mode.
His bot mode is more stocky than his classic earth version, and I’m a big fan of it as well.
This is the only Transformers Generations figure I own. I do have the Takara versions in Transformers United, but they look too good in packaging to be opened. For the moment.