Everyone has their opinion. A lot of posters seem to feel Nathan, Ross and Adam should go to the Olympics, with Nathan, Vincent and Adam going to Worlds, and Vincent, Jason, and Grant to 4CCs. As I said earlier, that would be my choice too, if I had any say. Adam's body of work is going to be stronger than that of Vincent and Ross (although Ross has had a very good career over the years, and he's also got two very good programs). Ross performed very well the last two Nationals, just faltering slightly in the fp but still placing well.
I know some will disagree with the argument that Vincent is young and that he will have at least two more opportunities to go for the Olympics. Vincent had no inkling of being on the podium at Nationals last year, and he admitted to finding himself ahead of schedule. I think his good showing at 2017 Nationals increased his confidence for Jr. Worlds. Part of the problem with figure skating is that the current competitive structure makes it difficult for skaters to have enough opportunities to compete in order to gain experience, exposure and confidence. Much less can they build momentum and reputation. Ross had very good performances in his first Worlds in Moscow (along with Richard Dornbush), but the judges were unkind, so sometimes placements internationally are not always an indication of what a skater can do or how they actually performed. It's better to look at the actual performances rather than the placements, since judging is often fickle.
While Vincent is a strong jumper and it's gutsy to go for the quads, he's not exactly landing them all cleanly, so he will not get the points internationally on tech nor on PCS that he got at Nationals. But with the quads (even under-rotated, he can perhaps place well and contribute more being on a Worlds team). Adam has more maturity, and he's been consistent and he has always received good scores on PCS from international judges. As someone else mentioned earlier, Worlds is more important re the team that is sent, in order to maintain 3 spots. Since this is Ross' and Adam's final year and they both contended well on many occasions over the years and in recent seasons too, I think they should both be on the Olympic team. And Vincent can gain more experience at 4CCs and make a strong team with Nathan and Adam at Worlds.
This truthfully is not the first time Ross has performed strongly, so it shouldn't be viewed as a fluke, but he does not tend to always get the points he deserves internationally (which he can try to counteract at the Olympics on an individual basis which won't impact spots for next year's Worlds). Let Ross have this once in a lifetime opportunity that he earned with his performances -- it's his final opportunity. Adam too has worked so hard, and he has had a solid medal-winning record for two years on the GP, along with strong performances at Worlds. This is his final opportunity for the Olympics too. Vincent will have other chances to make the Olympics. And Vincent can gain valuable experience going to 4CCs and Worlds this season.