ROFLMAO!
This is the funniest thread I've read here in a week. Thanks
I don't think the Razorclaw's shifting bonuses are weaker than those of the Longtooth though myself. Sure regen 2 is pretty good, but a +1 bonus to the two most used defenses is pretty good as well. In all likelyhood it will stop as much damage as the regeneration will cure, and regen doesn't prevent conditions, which are really worth stopping. At paragon/epic regen 4/6 probably are the better deal, but then again the fights where those few hit points will be the deciding edge at that level are going to be few.
Two extra move speed can be huge too. Admittedly the most advantageous use for it is hauling your wounded shifty butt out of there after the rest of the party gets wiped out, but as they say "any melee you walk away from is a victory."
And yeah, the Cliffwalk thing is awesome. Situational, but it is still rare there isn't SOMETHING you can climb in most encounters, and if it gets your squishy out of harms way, that's a good thing.
Overall IMHO I think the razorclaw is overall the better of the two. Slightly better/equal shift bonuses and better feats overall.
Besides, what DM can resist cat women?