Answer: metlife

AnswerCrossword Clue
METLIFE... Building (N.Y.C. landmark designed by Emery Roth and Sons)
METLIFEInsurance concern
METLIFEInsurance company with Snoopy on its blimp
METLIFEAetna alternative
METLIFECompany whose ads have "Peanuts" characters
METLIFEHartford competitor
METLIFESnoopy's insurer?
METLIFEOwner of the airships Snoopy One and Snoopy Two
METLIFESnoopy is its spokesbeagle
METLIFEPrudential competitor