Upper_Krust said:
Actually CR is the most consistent measure of power within the D20 system.
Nevertheless CR is our only marker for power.
That doesn't mean it's a good one.
For example, the following two characters have the exact same CR:
Ftr5, Str 18, Dex 18, Con 18, 60 hp.
Ftr5, Str 10, Dex 10, Con 10, 25 hp. (Everything else identical)
Obviously in a fight, the first one will whup the tar out of the second one so badly that his entire family will need a cure light wounds. The first one is unequivocably more powerful. And yet they're the same CR!
It's also trivial to imagine a scenario where a creature would be far more challenging for a demon lord than it would be for a party of adventurers - perhaps it's got a special quality that gives it SR50 vs. outsiders. That would not raise its CR much, because it really wouldn't be that big of a deal for a party of adventurers - but for a demon lord it would definitely make things more difficult. That's not to say that Graz'zt couldn't find a way around it - but it
would be more difficult for him to defeat the creature than it would be for your typical party of adventurers.
So my point is that any comparison of two monsters based on CR alone is going to be flawed, because CR is just a number, and it cannot take into account the specifics of the situation.
A dire lion and a 'stock' weretiger are the same CR, but the lion is unable to penetrate the weretiger's DR on anything but a critical - who do you think is going to win? Heck, I'd bet on the 'stock' weretiger vs. a dire tiger - a creature that's 3 CR higher! Does that mean the stock weretiger should be CR 8? Hardly - the average 5th level PC party will have access to silver or magical weapons - heck, they've got
fireball - and without its DR the weretiger isn't nearly as tough. An 8th level party would barely notice it as a speedbump - but they'd definitely notice the dire tiger.
So as you can see, trying to play "who'd-win" using just CRs is a nonsensical game, because CRs don't measure what you need to play "who'd-win" - at least, where one of the parties concerned is not a party of adventurers.
J