As I wrote, I spent most of my CoD time in the FMB, watching AI fighting, and there I noticed that diving Spits more often fly through Stukas without much damage, while 109s bouncing a group of Spits usually loose 10-20% of their strength in the first bounce, due to collision with the Spits, while the Spits get out without much damage.
My online time is too limited, that I would really draw any serious conclusions from that for myself, but I was surprised a few times, about Spits with which I crashed together, just carried on as if nothing happend, while myself ending up in huge fire ball. And for now, I am mostly the guy low and slow, due to the fact that I don“t see anything from above and that flying the 109 in scissors is a real challange and fun. So I am usually the slower one of the 2 planes crashing.