These threads always turn into "My prospect is better. Do you even watch anything other than your team?" pissing matches.
I like both players. No question I'm both a big Nils fan and a big Rangers fan. I like a lot of our defensive prospects and it's the main strength of our prospect pool. That said, Nils is the best defensive prospect in our system. The other argument might be for Schneider, but Nils has taken progressive steps each year in Sweden's highest level and broken several records in the process.
Bouchard does have the NHL track record thus far, and it does remain to be seen how effectively Nils' game will transition to North America. Nils has, however, played top minutes in the top league in Sweden, which is still a good league, mind you.
Bouchard has played NHL hockey this season, but also played 14 games of pretty sheltered minutes (almost 70% OZ starts). He positions well, but I'd love to see him be more physical. He definitely has the size for it, and obviously has the IQ and offense to be a top-tier contributor.
Anyway, I think they're two very good young defensemen, though the entire thing is up in the air until we see what Nils can do. Reasons to be excited for both.