Michael, obviously.
Daniel 12:1 "Now at that time Michael, the great prince who stands guard over the sons of your people, will arise. And there will be a time of distress such as never occurred since there was a nation until that time; and at that time your people, everyone who is found written in the book, will be rescued.
Nope, can’t be. The Hebrew word that you have quoted as “arise” actually means “stand up”. It’s Michael who “stands up” to protect the 144,000 that God promised to protect those elect. Michael wasn’t “taken out of the way”, he is on duty protecting those Israelites. Besides, it’s not Michael protects the “church”. Each church has a different angel, see Revelation.