How would you compare/contrast and ?
They are both elite leagues in their own way, but they are very different in that SHL is the top-tier pro league in Sweden whereas the OHL is for players aged 16-20 and is one of the three major junior leagues that makes up the Canadian Hockey League. You'll find high skilled players in both, but they'll be at different stages in their careers.
Our team has several scouts in Scandinavia and Canada who understand each of these tiers well. In addition, we've spoken with players (some clients of ours) who've spent time in each league previously.
