I mean they have a decent shot and his name is Connor McDavid, but I wouldn't have them in the top 3. Probably either 5 or 6, maybe 5 because the Pacific is junk.
They got older, slower, softer, and smaller over the offseason. Their RD depth is horrendous, they are a Bouchard or Ekholm injury away from total defensive calamity. RD also happens to be one of the more premium positions to acquire especially mid-season. Still not a Skinner believer either, his lateral movement and down low puck coverage are not NHL average.
They are going to score a lot of goals because that's what they do but I think this notion that they've 'figured it out' because of a deep playoff run is premature. They also started last season as a favourite for the cup and were so bad they had to fire the coach. They would have missed the playoffs if not for a freak winning streak.