I own Battle Ravage, and quite like the figure.
Although Argos are meant to have the new Ravage, they haven't had any stock of him in anywhere near me, although I plan to but him when they do. I think the new mould looks great and it's good to see the homage to his G1 self.
I hope takra announce they'll be releasing him too, before I find one as I'd prefer to get the takara version. Mainly because he'll be Jaguar (Japanese name for Ravage), who turns from a Jaguar (car) into a Jaguar (cat). That appeals to my sense of humour, so I'd probably buy him even if I didn't like the mould very much.
When I do own both of them I'm not sure what to do with Battle Ravage. The two options I'm considering is making him look a bit more like BW Ravage, or making him into the Japanese Brestforce character Jaruga