Good birthday greetings for a brother include "Happy birthday to my favorite brother in the whole world!" and "I am proud to call you my brother, today and every day." Another birthday greeting is "You are not only a wonderful brother, but also a wonderful friend."
One good way to greet your brother on his birthday is to say "I never got a choice of who to have as a brother, but if I had, I would have picked you." Another good birthday wish for your brother is "You've always been there for me, and I will always be there for you. Happy birthday, brother."
Some good birthday wishes for brothers are humorous, such as "Happy birthday to my parents' second favorite child!" More humorous birthday wishes for your brother include "Wishing you a very happy birthday, bro. You don't have to say out loud that I'm your favorite sister/brother -- I already know that. Love you!" and "Even when it seems like I want to kill you, remember that I love you."
Another good message for your brother on his birthday is "On this special day, I wish my favorite brother a great day and many great years to come." One simple birthday wish for a brother is "Wishing you another happy and healthy year of life, brother."