I thought this was interesting and I really wanted to see whether it was any good...so I figured the only way to do that was to try it for myself. So I did a quick trial run with the cast of the novel I just finished.
Spoiler alert: The sheet kinda sucks. =/ I found it biased, inadequate, and misleading.
Some things I noticed while filling this out:
-There aren't enough emotional/interpersonal positive traits: 'Lucy' got a 3 despite being the friendliest, funniest member of the cast, just because she isn't conventionally "useful" (BTW, 'funny' isn't even a listed trait, which is kind of ridiculous considering how ubiquitous it is in fiction). This is forgivable, though; nothing is all-inclusive.
-I don't know what's missing in the negative traits, but something is, because 'Azor' is borderline evil and got a 3. One of the most abrasive, aggressive, insulting characters I've ever written just barely scored on the negative side. Something is up. =T
-'Weak character' and 'Strong character' are bad labels for the extremes, considering what's actually in the charts. 'Mature' vs. 'naive', I understand. But 'attractive' vs. 'ugly'?? Being ugly does not make you a weaker character...you could easily get a 'weak' result for any unconventional/rough-around-the-edges character this way, which is not good.
-Just in general, character weakness and strength is better assessed by the characters' roles in the story than on their traits by themselves. A weak, lazy, stupid, good-for-nothing character can be very strong, even essential, when put in the right place. Meanwhile, a character that doesn't contribute enough is automatically a weak one, no matter how 'balanced' they are on paper.
Assessing the results:
=MC got a zero, which is cute, but seeing as it was a 3-3 it doesn't mean much.
=Already mentioned Azor...
=Pitch is 'too strong' even though she's the most complex character in the cast (and she does have negative qualities; many of them, just not the ones on the chart apparently).
=Lucy (and Dred, for that matter) just barely registered on either side... I take this to mean that characters with mostly interpersonal skills will give inaccurate/inconclusive results in general.
=Uriel scored 'strong' even though he is undeniably the weakest member of the cast; he's practically an NPC...as in, he's kind, useful, but not particularly close to the events of the story or the other characters. Unfortunately, this chart doesn't take that last detail into account...you can see why I'm unsatisfied with it.
-To conclude, I agree with the blurb at the end of the chart...but I wouldn't use the chart itself to assess those qualities. ^^; I kinda feel like filling it out was a waste of time...if it's gonna be this wildly inaccurate, it could at least be funny...