Taylor 8mm wires are absolutely identical to Motorcraft wires except for the spiral core and color. If you lay them side by side there is no difference. The boots even have the same "Ford" emblem molded into them. That being said people have all different kinds of luck with all different kinds of wires.
David Neibert has used the same set of Taylor wires on his car for several years including having removed them probably 8 times during those years without ever having so much as one failure. I've had similar luck using those wires on various cars. I've also had 100% success using Motorcraft wires and in fact I've never had an issue with the Jacobs wires either.
I've had Magnacors that wouldn't clip onto the spark plugs before. That is something you can fix if you are careful and it is probably true for just about any wire that you could get one or two that don't fit tight.
I'd say that installation is 90% of the problem most of the time. People just don't make sure that they fit right or don't use silicone grease on the terminals, or they damage the terminals by trying to force the wire on too hard. I've also seen many boots damaged by the brackets that attach to the exhaust manifolds. You have to be careful what you are doing.
An interesting story, at the SC Shootout we had one person with some fancy wires (not sure what brand but I think they were the top line Magnacores with the big cool looking wrap on them). I gave the guy a hard time that maybe his wires were going to cost him some HP but I felt bad when the car was missing and chugging all day long. In a last frustrating ditch effort he went to AZ and bought some of those "crap" wires and viola, the car ran perfect. Too bad it was after the racing was over.
Anyway, the point that Burbank made is an excellent one. As far as I know there is no spark plug wire upgrade for these cars. Only cheaper ones and more expensive ones. Prettier ones and stock looking ones and it doesn't matter how pretty they are, if you get a bad one it will really spoil your day.