I must add, the only thing with me was when i had the 3rd degree tear, dd was 8lb 13oz and i was a week over, the reason i had the tear was because nobody told me to ease off / stop pushing as the head crowned.
With ds (elective section) he was born at 38 weeks and was 9lb 6oz, but i did actually go into labour with him, i was booked in for the section on the 11th Aug and went into labour on the 6th Aug, i was 3cms really quickly and had a section that afternoon.
So compared to my first labour, which took me about 8 hours to get to 3cms, 2nd time around was really quick, but the size of ds was a little worrying had i chosen a natural delivery. I do think though if i had gone for natural and i had a wonderful attentive midwife to guide me carefully through pushing it would have been ok and i do regret not going natural now.
My section was awful, i really do not understand these celebs etc who choose to do that, the after care was terrible, i was left without pain killers and with dirty pads when i was unable to move, the pain when i stood up for the first time? well i cannot put it onto words (and i breezed the pain of the 3rd degree) the recovery was so long and drawn out, and i couldn't pick up my baby or do much for him at all, i also ended up with infections inside and out. It took me a good 5/6 weeks to feel even slightly normal.
After my tear... i really didn't find it so bad, i was up and about virtually straight away once my repair spinal had worn off and was fine and dandy, apart from the itchiness of the stitches healing. I found the healing a doddle compared to the healing of the section.
Good luck with your decision, it is a hard one, but i know what i should have chosen.