Name issues

Formerly Mrs D S

DH and I are expecting baby #2 (DS)... we agreed on our daughters name 100%.  We both decided if we had a boy we would name him Parker Landon... before we knew we were expecting I said I rather name a baby boy Landon John (John is on both sides of the family)  We had the name set.. no further discussions until the other day when he told me he doesnt like Landon anymore.... so we start at square 1 and realize that we have TOTALLY different views on names.  I honestly dont see how we will ever agree.  I know we have time, but its getting so frustrating.  Anyone else in this situation???