Now that Obamacare IS the system and it IS the problem, then maybe on one side of the isle we can talk about fixing Obamacare and on the other we can talk about replacing.... and mean the same thing.
But seriously, on the left I think we/they should be happy with a compromise that sees an expansion of medicaid and some sort of very basic universal healthcare paid for with a broad base progressive tax. Not single payer for everything, just emergency medicine for all and a few sick visits. Figure another 2% on top of the medicare tax.
And for conservatives, introduce an option to opt out of the insurance market and not get fined under the individual mandate. Instead of an Insurance mandate, give people an option for a savings mandate. So you have to save up to 5% of your income every year until you have saved a certain amount of money, say $50k or $100k (indexed to inflation).
Treat the savings option like a Traditional/Roth IRA where you can invest the savings however you like, but only take it out tax free for medical expenses until retirement age. But then at retirement make it tax free up to a certain amount. Encouraging more savings and investment should also help with a retirement savings problem that we have in this country.