Palat played on a separate line more than anyone. Roughly 75% of Johnson's 5v5 TOI was with Kucherov, according to behind the net. Since Johnson was injured, it works out to just over 60% of Kucherov's ice time. Palat played with Kucherov about half of his ice time. When he wasn't being centered by Johnson, he was by Stamkos. Both are a ton better than Lehtera or Steen (as a center) for Tarasenko.
I don't want to belabor the point of Tarasenko v Kucherov. Both are great players. I prefer Tarasenko a good bit and it may be bias. But I do like Kucherov and TB a lot. As I said, to me Kucherov is bolstered by his teammates. He is very good but they work so well together it takes them to another level. I didn't watch as much TB this year as in year's past, having moved away from Florida and my TB fan friend. So maybe he improved, or managed to keep the same play level when separated from Johnson this year. I still value what Tarasenko brings more in the #1 wing role.
What I value with Tarasenko is he seems to do more on his own and when it counts. He just has this incredibly clutch switch he can turn on. Its like he has an "I win" button that is good for an automatic goal but he can only use it 40 times a year. He picks the absolute best times to use it. The percentage of his goals that either tied a game or broke a tie is unreal. I don't have the stats on hand, but they showed them during Blues games and he led the league all year by a good margin in goals that tied or broke a tie. Its like 75% orAnd he does it often on his own. He is so strong on the puck and so quick with his shot, he can turn and fire a laser in a split second while being hounded.
There is a story of a game where Elliott let in a bad goal and was pissed. Tarasenko, who was in his second year at the time skated over to him and said, don't worry, we'll get it back with such confidence Elliott believed it. And within minutes, Tarasenko got it back.
I'd prefer he didn't float as much on D when the switch wasn't turned on. I wish he had the killer instinct to bury teams when they are down. If he flipped the switch more or played harder when it was off, he'd be in the conversation for best players in the world. He doesn't, and so stat-wise you can make a credible argument that Kucherov is close. But I value having that switch when it counts more than what Kucherov brings. Again, that may be bias, but there it is.