Sure Ryan is young, but overall Kes is a better player than Ryan, and it seems that most GM's would agree, seeing as how Ryan didn't even make team USA, although I think he still should have (Ryan is also 1 dimensional like Mantha). GM's value defensive gritty, Selke winning centers much more than a skilled winger in todays NHL. Any team making cup run would likely overpay for somebody like Kes to anchor their 2/3C position. Detroit would be one of those teams IMO. I still am flabbergasted that you think Kes would only get Mantha and a 1st.
You have to remember that Mantha was the last person to make team Canada, because he is so 1 dimensional. It was either him or Shinkaruk. They made the right choice obviously, but he was nowhere near the best player on that team. If you think otherwise, you are a fool Deniro. Mantha is barely > Shinkaruk.