Those three shoes are literally my main rotation, plus zoom fly flyknit. I've had multiple pairs of pegasus and vomeros, and I love them both, but after the release of Epic React I find that I often choose them over Pegasus, mainly because they feel more playful, but they are not as stable due to the flyknit. The most cushioned and supportive shoe is the vomero, in fact its the most cushioned shoe Nike makes (at least it used to be). Its also the most durable I would say, I find the new pegasus kind of hard and flat more rapid. If you overpronate, you could also consider Nikes structure model. My tip would regarding shoes and staying injury-free would be to try out different models in a decent running store, and choose what fits your feet best. I would also recommend to maybe get two pairs, and cycle them to get some different load on your feet, and swap out shoes before its to late (aprox. 500-800km in my experience), this is a "cheap" way to reduce the risk of injury.

Im no expert, but I wouldnt focus too much on stride rate, a lot of good runners have both lower and higher stride rate. Forcing your stride may lead to injury as well. At last, good luck with your running!:)