Formula:
=IF(IF(AND(B1="A",B3>=MAX(Sheet2!A2:A6))=TRUE,INDEX(Sheet2!A:A,COUNTA(Sheet2!A:A),1),IF(AND(B1="B",B3>=MAX(Sheet2!B2:B6))=TRUE,INDEX(Sheet2!B:B,COUNTA(Sheet2!B:B),1),IF(AND(B1="C",B3>=MAX(Sheet2!C2:C6))=TRUE,INDEX(Sheet2!C:C,COUNTA(Sheet2!C:C),1))))=FALSE,IFERROR(SMALL(INDEX(Sheet2!$A$2:$C$6,,MATCH(B1,Sheet2!$A$1:$C$1,0)),COUNTIF(INDEX(Sheet2!$A$2:$C$6,,MATCH(B1,Sheet2!$A$1:$C$1,0)),"<="&B3)+1),B3&" Is the Higher Value"),IF(AND(B1="A",B3>=MAX(Sheet2!A2:A6))=TRUE,INDEX(Sheet2!A:A,COUNTA(Sheet2!A:A),1),IF(AND(B1="B",B3>=MAX(Sheet2!B2:B6))=TRUE,INDEX(Sheet2!B:B,COUNTA(Sheet2!B:B),1),IF(AND(B1="C",B3>=MAX(Sheet2!C2:C6))=TRUE,INDEX(Sheet2!C:C,COUNTA(Sheet2!C:C),1)))))
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