When to use "we" and "us" — specific SAT example [duplicate]
Solution 1:
This is one of those messy situations the exam writers should know better than to dump you into.
Very rigorous judges have long held that constructions of the type "X is better than Y" (substitute your own comparative for 'better') should be parsed as elliptical reductions of "X is better than Y is", and therefore require Y to be realized in the nominative case, if that's distinct from the objective (which is only the case with the pronouns "I", "he", "she", "we" and "they". That's the "rule" which the exam requires you to follow.
Unhappily for those rigorous judges, the "rule" is not, and never has been, followed in the language-as-she-is-actually-spoken. In ordinary speech virtually everybody has virtually always said "She's better than me", "He's better than her, "I'm better than him", "We're better than them", and "They're better than us". That's the "rule" recognized by most descriptive linguists; and many people who offer advice on how to say stuff promote that rule.
So there's a fundamental disagreement between two schools of prescriptive grammarians: which "rule" should you follow?
This will probably sort itself out on the "me/him/her/us/them" side by the time you retire. But right now you're stuck in the middle.
The "I/he/she/we/they" rule is a bad one. But you're applying for admission to a discourse community which very largely observes it; so choke down your annoyance and follow their rules until you have enough seniority to follow your own rules.
Just wait for them to die and you'll be fine.