Actually, I think I do have that Big Brother Eye Takedown set (so I do have a Batwing, after all, but just haven't built it yet). Looking at the package, the Batwing in the BBET set (where Batwoman is pictured piloting it instead of Batman) seems rather simplified and stripped down compared to the beefier Batwing in the Riddle copter set. I think I prefer the beefier look since it gives off that 1989 Burton/Keaton Batwing vibe to me. Plus the promo pictures have it where you can hang/dock the new Batwing in the new Batcave (vs. Clayface invasion set) on a raised pedestal, which is pretty cool to me. That's a good size comparison. I'm also reminded to build that Joker Lowrider too.