I don't actually hate Rise of Cobra like most. To me it's a perfectly fine sunday afternoon movie, not especially good, but I can put it on the background, and watch all the dumb stuff unfold in the background, as I type on my laptop or something.
JGL seems to be among the few actors who really knew the material he was working with, which I actually appreciated. I distinctly remember a lot of complaints at the time on the forums I posted on about him being too "wimpy" and "young" for the role of Cobra, even though the original Cobra Commander was basically a joke by the end of the original series.