I had a hamstring graft as well. I don't know about anyone else, but these are mine: About a 2.5 inch incision under my kneecap and towards the inside of my knee(medial), two arthroscopic holes where my knee cap is, and one arthroscopic hole to the outside just above the knee. They harvest the hamstring from the incision, and they also drill the tibial tunnel that they route the hamstring through. Very uninvasive.
One method that they do the hamstring with is actually stronger than the patella. They take a fairly large portion of your hamstring tendon, and fold it over either once or twice. This means that you are basically either getting a two or four banded acl. Very strong. The disadvantage with the hamstring is it takes longer for the tendon to initially fuse into the bone tunnels that they drill, because it's soft tissue, whereas a patella that is harvested has bone blocks on either end. Bone on bone healing occurs faster than tissue on bone. The second disadvantage to a hamstring is it takes greater surgical skill of the surgeon to do it.
So the initial recovery of the patella is faster, but the end result is about the same.
But it must be stressed, surgery is only half the battle, as anyone who has had knee surgery knows. Rehab is equally important. You can have the best surgeon in the world repair your knee with the gold equivalent of an acl, but if you slack off in physio, you can expect to be seeing your surgeon again very soon.