If Lisa does "Solo" and Jennie does "Money", how would it be compared to the originals?

I don't think either would work as well. Solo suits Jennie and Money is perfect for Lisa.

Quote from Marmaladeheart

I agree with this comment.

I think that the charm of solo and money is the result of the two artists mentioned. Solo has something ladylike and sassy while Money is a hip hop badass song. I think both Jennie and Lisa present these roles best.

Agreed. All the BP solos show off their individual charms.