Ox. Montana. Fancy Dan. These guys might not look like much, but they're the biggest badasses in the Marvel universe. None of them have any powers, but they've held they're own against Spider-Man on multiple occasions.
Spider-Man, in case you've forgotten, has the powers and proportional strength of a spider. The Enforcers are a strongman, a cowboy, and a guy named "Fancy Dan."
Watching Spider-Man fight them is like having your team slowly blow a five point lead. The whole time, you're thinking, "How is this happening?" Spider-Man pulls it out in the end, but the match up is always closer than it should've been.