Eddie seemed to often be in the 20-25 ton range on average. Peter is still listed as a 10 tonner these days, but even Peter is well above that. He floats around 20 without strain.
It is important to note that Eddie showed stealth capabilities like Kaine's stealth suit (hence my giving it to Kaine) and like most symbiotes is unbothered by piercing/slashing (since Kaine does have stingers). Eddie was also faster than Peter, and his webs were stronger. Physically, he should be fairly close to Kaine.
Just adding info to the fight and food for thought.
Eh, I have no problem putting Brock in the 50 ton range TBH, Given the feats he has, and how he generally manhandles Peter. I also don't think Brock is faster than Peter though. I think their speed is pretty much comparable (Ben Reilly said Venom was just as fast as him with more muscle), and Brock's increased Durability and more savage fighting style is likely going to lend himself to be hit more than Peter would in anycase case.
Eh, I think the strength gap between the two is larger than the skill gap. Is Punk the better technical wrestler? Yes, I think he is, but Cena isn't exactly a slouch, however, strength wise, , and I'm willing to bet his striking power is harder too.