Sorry, I don't have any of the two! However I have a close friend / relative for whome I got the 55-200VR and she loves it, I wanted to get her the 70-300VR but she nagged me out of it as she thought it was a bit too big for her to carry around.
I've seen some of her results with the 55-22VR (she's a novice at this) and she gets some really great shots; it's then that I realised that she would have been better off had I got her the 70-300VR as she'd have more focal length.
So, if you are ok with the money being spent for the 70-300VR then I'd say go with that .. I've read a lot about that lens and, like the 55-200VR, for the money it's just amazing ... and I mean seriously amazing .. both lenses are compact, light, good "reach", offer very good VR, and for the price you really can't beat, unless you want to go with Sigma / Tamron / Tokina?!? :shrug: