I'd say Europe resembles the current state of the party right now with a xenophobic populist. The difference with Europe I would think is they put economic issues to the side so if anything, they focus more on culture identity than the U.S. Version of conservatism. You are right though about the fiscal problem the party had had for years. It's now a party of Reagan instead of Eisenhower and it will be destructive so long as it clings to unaffordable military budgets and an unacceptable that there can be good spending in government for long term investment like infrastructure.
Social issues tend to bother me for both parties. I'm pro gay marriage, anti NSA for privacy, closer to prolife which may be one of the hard points in siding with dems. My biggest problem with the dem party on social issues is I don't think they base anything on broad rights. I wish they would run on a more libertarian platform like people claim they do. I also have a problem with the beginning premise I see sometimes with the dems. I think for regulations, it's always an emotional argument that never considers costs and it's what leaves them out of touch with the people. They don't care if prices rise if they control things. Some politicians split from this. I think this has been somewhere Obama truly ha focused on the people rather than the party with how he embraced the shale gas boom. This was a guy who was saying we needed to get use to Europe level gas prices but when the opportunity came that wasn't necessarily popular with his base to give households more from their paycheck, he took it and accepted it was a decent stepping stone to coal and other energies.
For banking, obviously Bernie is appealing but this is a cross issue topic as Rubio and Fiorina mentioned the same thing this 2016 cycle and Huntmans mentioned it more than once in 2012. You usually see the line by who has been on Washington longer and who hasn't, so less so with party.
If I had to narrow down my priorities, I care about being fiscally conscious, hesitant with infringing on people's rights/ personal lives/ and long term oriented with spending. Neither party is doing a good job at this right now. Just one is running on it and it's starting to fall flat for the BS it is.