Regarding Grimlock, I think they missed their chance with the Fallen. Those guys could've easily been Dinobots--you just shift the "17,000 B.C." to "70 million B.C." I guess they'd have been evil, but Grimlock beyond good and evil, Grimlock is king.
Yeah it's just... it's been three movies.
Three movies. Grimlock isn't a bloody bottom of the barrel toy, I sure as hell remember him being pretty popular (alright that may just be my ranking as a kid, which liked having Optimus and Grimlock in the same ballpark). He turns into
a fricking robo-T-Rex! As far as indulgent summer movies about giant robots go, you'd think the one that turns into a T-Rex would merit some consideration...
Like Jurassic Park only... robot. Is there something I'm missing here?