More comparison pics have surfaced.
I've decided to move the entire lot to the first post to make it easier to reference, however I have linked the individual pics below.
WFC Soundwave, Cliffjumper and BBee look awesome with their metallic paint look.
United Jazz doesn't look that different (besides better paint apps in vehicle mode) and Straxus just looks way 'too blue' for my liking (which I suppose is better than Hasbro grey)