Alternate character life and death [general]

If there was one dead PJO verse character whom you wanted to not die to live and a currently living PJO character instead would die, whom would you'll choose.

For me I would have wanted either Frank (unpopular opnion: as much as I love Ascelipus the physician's cure arc was not needed. Besides it would have increased the stakes if the one of the seven had stayed permanently dead against Gaia making their sacrifice important . Also Frank was intially being built up to die in the initial part of HOO with the firestick being built as imp) or Drew Tanaka (her canon self is basically an one dimensional mean girl)

And I would have wanted my man Jason Grace to live instead.