After ‘BUT’, ‘EXCEPT’, ‘BETWEEN’ and ‘LET’ the pronoun is used in objective case, whereas after ‘such as’ in the subjective case.
Ex.- Everyone laughed but I. (Incorrect)
Everyone laughed but me. (Correct)
None attended the meeting except he. (Incorrect)
None attended the meeting except him. (Correct)
Let we laugh away our sorrows. (Incorrect)
Let us laugh away our sorrows. (Correct)
This is between you and I. (Incorrect)
This is between you and me. (Correct)
They do not have a liking for such a person as me. (Incorrect)
They do not have a liking for such a person as I. (Correct)