Kinda depends where you are in the home-buying amortization plan.
That tax deduction drops steadily, but slowly at first, the farther you move along in your homebuying plan.
The mortgage interest deduction is written to favor those who buy and sell homes often, thus being "early" in the amortization plan. You're paying very little on the principal and a lot in interest, so the deduction is higher.
I'd favor reduction of the tax rate - say to about 15% - if they want to take away my mortgage interest deduction. I'd come out ahead in the long run, I think.