I wonder which is greater....Jews that celebrate Easter, or Christians that celebrate Passover.
The two events are not related in any way.
The Last Supper was a Passover seder, so they are connected, in a chain of history
You might be interested in googling
Exsultet
the prayer that begins the Christian Easter Vigil liturgy. It makes the profound and beautiful connections between Passover and Pascha (which in most languages is the ancient term for the Lord’s Resurrection, his “passing over,” from death to life.)
Pascha is the eternal and universal fulfillment of Passover.