在英语中，你最棒可以用 "You're the best!" 或 "You're the coolest!" 来表达。

例如：

"You're the best friend I've ever had. Thank you for always being there for me."
"You're the coolest person I know. I'm so lucky to have you in my pfe."

这些表达都表示你很棒，是最棒的。