Curious to where they are more talented at every position. The Islanders are top 5 IMO, but they are head and shoulders above the Panthers, as you make it seem.
Florida has a top 5 center on one line, a top 5 LWer on another, and they have multiple 20+ goal scorers on 3 lines. Panthers are deeper at forward.
From an offensive perspective, I'll admit that I don't believe in either Bennett or Duclair and expect them to regress massively next season but if that doesn't happen then I'd consider Florida's offence to be comparable to the Islanders' group of forwards
That being said, Varlamov/Sorokin is the best tandem in the league as opposed to Florida who is entering with two massive question marks in net
Ekblad is the best defenceman from either team but the Islanders have more defensive depth, the Panthers' defence is average aside from Ekblad and Weegar
The Islanders' superior defence and vastly superior goaltending is already enough to give them the edge and while Florida may have more star power, I still wouldn't hesitate choosing the Islanders over the Panthers to win a single game or a BO7 series