There are plenty of flaws to our tax code that aren't gonna be fixed. Changing the top marginal rate isn't gonna do jack , Wild Cobra is 100% correct there.
There are still people who have a portfolio of municipal bonds in the millions or even billions. It's time muni-bond interest is tax exempt only to a certain number. Someone making 7+ figures in muni bond interest every year shouldn't have all of his income sheltered.
Unlimited tax exemptions like muni-bonds as well as cap gains rates and dividend rates that are laughably low are the problem that needs to be dealt with (and no, anyone who thinks Romney was closing those loopholes is kidding himself).
If the marginal rates returned to pre-Bush tax cut levels but exemptions/loopholes people over-utilize were closed and the cap gains rate was raised, that'd be fine. It's never going to happen though.