Wulf Ratbane said:There is a huge problem with CR/EL as 3e presents it: it does not accurately model the power jumps from CR to CR. Moving from CR1 to CR2 is a huge relative increase in power; moving from CR10 to CR11 is a much smaller relative increase. Yet the CR/EL/XP system treats them as if they are equivalent jumps in power.
I remember one of the Dungeon/Dragon editors (can't recall who at the moment) talking about something similar to this a while ago. He said that a group of 19th level characters fighting a CR 27 enemy doesn't play out nearly the same way as a group of 5th level characters fighting a beholder. That really is a weakness of the system, IMO.
Wulf Ratbane said:16 orcs are actually much closer to 3rd level (using Chi/Rho for my guesstimate).
Actually, I think 16 orcs would be way too dangerous for a 3rd level party. Sure, the fighter might have the AC to handle himself okay by that point, but the orcs would be almost guaranteed to kill the wizard (he wouldn't have a good AC, the orcs could probably drop him in two hits, and with so many of them, it's not like the fighter could stop them all from reaching him), and quite possibly the rogue as well. The only way to avoid that would be for the party to fight them at a choke point, but then the encounter just turns into the 3rd level fighter vs. a long string of CR 1/2 enemies - which isn't nearly the same thing.