The question you should ask yourself is....what change do you want to make:

1. Are you changing just for the sake of change?
2. Do you want more sq/SPL?
3. More/less trunk space?
4 Difference in $$

ETC....

decide what it is you want, then after you set criteria for the decision, it can be made....not to sound over-analytical, but your question really can't be answered.

If it was me, I'd keep the JL's....or buy two IDMAX's