I am having an elective C-section for fear of having a massive tear. My husband was an 11 lb baby and they took him 3 weeks early. My own baby was measuring 3 weeks ahead at my last ultrasound, and I did fertility treatments so I know my dates aren't off.
My doctor said I could "try" to labor and have him vaginally if I wanted to, but she recommended going ahead and scheduling a section because she said he will more than likely be too big for me to deliver on my own. I am completely fine with this, as I have a friend who had a 10 lb baby vaginally and had a 3rd degree tear with lots of complications.
C-section scares me if I really think about it, but I trust my doc and she said it would be far less traumatic for baby to be delivered that way than to try the other way with him being so big already.