Which one is better Lifeline or Revenant?

@Alphabets Lifeline is the stronger of the two legends. Her passive is what makes the difference IMO. The care packages are nice if you need a purple armor for a squad mate but beyond that their value is minimal vs the attention they bring. The healing drone is convenient at best and the revive passive is sort of helpful but not that great.

Revenants bombs often end up getting the revenant killed and don't really do much outside of shut down a caustic or gibi. Which can be valuable, but you'll often get downed as you fumble with throwing the bombs. The ult is useful if you can lay it down close enough to a fight to stay in its effective range. But more often then not, you have to leave its effective range. The other issue I've seen with it, it splits up the squad. Even if everyone hits it, people get sent back to the totem one by one.. Leaving the enemy team fo 3 to focus fire on who's left. If those who were sent back don't wait and push together.. They again get downed one by one due to the focus fire.

Revs best ability in my opinion is his crouch walk, but it's rare to be in situations where it's useful. It's also sort of useless because your squad mates are going to make a TON of noise. So enemies will know you're coming anyways.