Firstly it’s important that you research into the difference between the University-led route and the SCITT route (I’m under the impression the active teacher training is a SCITT route ?). I considered applying to the University of Cambridge but in the end I only applied to SCITT programs because I knew that I wanted to immerse myself into a school setting and get a feel of being part of the team from the start. I will attend university only one day a week. I also liked the ideal of knowing which school would be my main placement (and in my experience, the interviews were held at the schools).
There isn’t a better route, it’s really down to what your learning preference is.
Secondly, take into consideration that the course is going to be exhausting and time consuming with essay writing and class prep, so I would argue that travel time is very important. You want to minimise the stress the most you can.
Finally, I’ve heard that as long as the training provider doesn’t have a bad reputation, who you go with won’t have a real impact on your job opportunities. Incase that’s your main reason for considering Cambridge University but prefer the SCITT route.
If you’re not sure what’s best for you, why not contact the providers and see if you can have a chat with them about their course. Perhaps visit potential schools as well. Some providers offer open days, or have events either in person or online, some offer experience days. I attended some events and found them really helpful.
Any questions, don’t hesitate to ask! Good luck with everything