While having a third party might have its advantages, most places (counties, communities, etc) (I live in one of them) are so one party that there is rarely a candidate run by the minority party for most offices. And if there is an incumbent, there mostly won't even be a primary challenger. I haven't had a serious choice for state representative or state senator in close to 20 years, and about the same for US representative (although redistricting recently changed the party with the majority power in my district)...Don't even get me started about the county and local governments...
It would be nice if I could have a choice of serious candidates for each office in the primaries, and for serious candidates for each office from BOTH of the major parties in the general elections...
Unfortunately, can't vote 'em out of office if there isn't a challenger of any stripe...Need to introduce a mandatory "None of the above" option for voting...