family

i am year 1986 year of the tiger while my husband is 1989 year of th snake.. i have a 4month old baby she is 2012 year of the dragon.. i am planning to have a baby it is either this comming year of the horse or year of the sheep..what do u think is the best chinese sign for my next baby.. i want someone compatible to me,my husband and my first daughter..thanks in advance. also please kindly give me an explanation why? on ypur opinion