Well they sure seemed great until you mentioned the Night Raven.
But I really don't have room to spare for any of them, which has precluded me from obtaining either of them. If I could though, I'd be perfectly happy with getting just the Rattler. In concept, it's probably one of my favorite fictional vehicles of all time, since they took my favorite plane, and gave it VTOL and a WWII inspired dorsal turret. The Night Raven, in reflection, is cool in that it is a nice homage to the SR-71, but the whole escape pod scout jet thing has been worn into the ground since.
Of course, give them both to me as Starscream (Voyager Class) and Thundercracker (Deluxe Class) and I'd be really happy...