Balancing the budget in two years is two much, two fast. The job needs to be done, but not everything has to be done in a hurry. Besides, politically, it simply could not be done in 2 years. I don't care who you have in congress, they would never pass the needed cuts, democrat or republican. Since it cannot be done, any republican saying he could has already proven himself unfit for office.
Besides, I do vote for more than just the budget. I vote for the candidate that most closely shares my views on a fair number of issues.