Question

Lisa's older brother is taller than _____.
Her or She?

Answer 1

she. Because the implied sentence is
"Lisa's older brother is taller than she is."

Answer 2

Nice! Thanks!

Answer 3

Hmm What about I am older than ___?

Answer 4

The implied sentence would be she is, but the natural response is her

Answer 5

So would it be 'her' or 'she'?

Answer 6

she, nominative case

"as" generally takes the nominative: he is as big as she
"like" takes the objective; he is big, like her....