I'll take the good old tried and true USA checks and balances republic as the "best political system currently in existence." Some of the European systems might prove to be better in the long run, but they are all still pretty new. We've had a continuous republic since a solid century before Germany was ever unified under one government, and the durability is not something I take for granted.

Obviously it is imperfect that we currently have to choose between D or R or essentially not participate. The D/R stranglehold has done great damage to our republic over the past half century, to the point that our checks and balances have pretty severely weakened and we are now in a really precarious moment. The two paths to breaking the D/R stranglehold and preserving the republic that I see are:

1) Change the way we elect people. First-past-the-post elections lead to two-party systems, it's just math. Ranked choice would open things up to non D/R voices, which could restore accountability to our government. I think some amount of proportional representation may be good too, but that would be a big change for us, so we'd really have to call in the experts on that one.

2) New coalition formed from 50% in the middle. The Ds and Rs are both increasingly catering to the ideological fringes of their coalitions, leaving a gaping hole for a new coalition to emerge in the middle. A 50% from the middle coalition could have the potential to be a far more reasonable, responsible steward of our government than the Ds and Rs have been. Anyone else Yang-curious?