Ken, both are by most people's idea are taking a step backwards, due to one Coax has been around since the age of the atom bomb, twisted pair on the other hand has improved over time. Twisted pair can pull gig or better, depending on the distance, where as Coax needs amps along the way to correct the signal, unlike twisted pair.
Both are tried and good technologies, but catv companies refuse to change their habits, nor do they live up to the open promise that they gave back in 1995, that they would have the technology changed before 2000, to offer more robust tv viewing. ATT on the other hand, along with satellite have shown catv providers how to change things up, not only for security of the programming feeds to the viewer, but the applications that can be delivered.
On the other hand, you have locals that refuse to change to deliver a better product OTA, CATV, fios, UVerse, Satellite, and it continues to be crap. I compared our locals on OTA to both CATV & Uverse, and either way, the ABC & CBS were crap, unlike the NBC local looked very good across all three. Even on Satellite, the NBC is better than the other two, due to the crap delivery they give.
CBS was full of sparkles and motion artifacts on both OTA and the others, so that tells you right there, that it is a delivery issue by the OTA, not the medium, so your statement falls right there.
As for triple play, it is the cost of the delivery that is making up for the "gift" that catv is handing out to keep subscribers, since their Churn is so high. I got lucky with a discount for UVerse, due to I belong to a union, and being a long term att sub, I got a 12 month discount on both Internet & tv, which I would have never gotten through CC.
Maybe in 12 months, something else will come along, or I will stick with ATT, since I like their service, and have not had the problems with them as I had with CC.