The first one is correct. "It is like" the best decision you can ever make.
Saying it that way, is the same as saying that it would be the best decision that you can ever make, but adding more to it. Almost as if soeaking to someone who is overdramatic, and constantly say the word like.
I hope this helps
In Act 3, Scene 2.. Juliet anticipated her wedding night with Romeo. Unfortunately, when the nurse entered Juliet's room, she announced that Romeo is dead. He died after killing Tybalt.
Juliet sent the nurse to find Romeo corpse. She gave the nurse her ring so that the nurse will return it to Juliet's "one true knight."
Juliet wanted Romeo to visit her in spirit to bid her his last goodbye as she believed him to be dead.
I would need to see what type of question you are asking