He has been elite this season, but he's definitely not elite defensively like some people in this thread have said. He reminds me a lot of a better defensive version of EK65 or Keith Yandle when he was at his peak. He's a great playdriver, elite offensively, and his offense more than outweighs his defense, but he'll occasionally make some pretty bad defensive plays/reads that lead to a chance or goal and have everyone groan about him. It's a lot more evident in the SCF, but I've seen him make plenty of those plays in other series and the regular season too.
Which is fine. He's also had periods of time where he has generally played super solid without any real mistakes like that and he's only 24, if he continues to grow and cut down on those mistakes he'll be a solid top 5 d-man in the league. I'm sure there will be fans who say he already is, but I just don't see him above Makar, Hughes, Fox, Josi and Hedman. He may have a peak higher than some of those guys and if somehow the Oilers manage to win the cup that probably makes it more debatable but I just don't see 2 playoffs + 82 games being a large enough sample size.
I'm looking forward to him doing the same thing next year and really cementing himself in the conversation though. It's honestly a shame that he wasn't a Norris finalist, especially considering this bonkers playoffs from him. If Edmonton wins I hope he gets the Smythe, none of the team has been particularly good this final so far but he's a huge contributor to their offense and IMO was way better than Draisatl in previous series, if Edmonton wins it'll probably be McDavid's because it's McDavid, but Bouchard has overall been better I think.