Not sure where you live, and that might influence decision, but, consider no tilling corn. We (central Kentucky) suffered drought issues as bad as anyone in the nation this year. We've had good success with no tilling in average years, even exceeding area yield averages most of the time. But this year, one of the advantages of no till really showed up. For a number of reasons, no tilling performs better in dry conditions. And the hybrids available that are catered to no tilling seem to perform better than most in dry conditions.
As an experiment, and to play around with a new (to me) tractor and chisel plow I bought at an auction, I did 2 fields half conventional, half no till. Total acreage was around 60. (30 NT/30conv) In both fields, the no till out yielded conventional corn by more than 30 bu/ac. This is an extreme case with the level of drought we had in 2012, but I'm convinced there is a difference in most years.
I've since sold the chisel plow. Back to what has proven most profitable over the long haul for me....no tilling.