I think you're massively underestimating the gap in strength between the super soldiers and the Spider-Men. It's not quite Daredevil vs Hulk but it's far bigger than the gap between an adult and a ten year old (
a typical adult male's 3.5 times stronger if you're curious)
Maguire's best strength feat (129 tonnes) is over 80 times better than Cap's best strength feat (1.5 tonnes) and 64 times better than Panther's best strength feat (1.7 tonnes).
Garfield's weaker but his best strength feat (16 tonnes) is still roughly ten times better than Cap and Panther.
I really don't buy this. Garfield is far stronger (see above) and also far faster.
The guy is a bullet timer (his best feat is casually dodging 768mph machine gun fire). This makes him four times faster than Panther's best reaction feat (catching arrows which can go up to 200mph) and over ten times faster than Cap's best reaction feat (leaping out the way of a car crash, potentially 70mph).
I agree, Cap and Panther are the most skilled fighters here and skill does matter.
It matters that unlike Holland in Civil War, Garfield as of ASM2 and Maguire as of SM3 are competent fighters in tune with their powers (including their spider sense).
As skilled as MCU Cap and Panther are, they're not skilled enough to beat someone competent who's ten times stronger and ten times faster (Garfield) or someone competent and comparably fast who's over 60 times stronger (Maguire).
The vibranium suit definitely makes a difference. Cap can be taken down fairly quickly with overwhelming strength/speed, whereas with T'Challa it's not that simple. They can still web him up though.
I still think it's Quicksilver. Cap and Panther are just too out of their league for strength and speed (see above) whereas Quicksilver at least has his speed advantage to cause trouble with. I don't think QS hits hard enough though and sooner or later he'll take a hit from someone with spider-sense and go down.