I disagree a lot with both parties.
Tories spend £1bn to secure themselves in government (could be seen as worth it for stability), Spend £5bn upgrading Parliament building. But wont spend a few hundred million sorting out fire safety for tower block residents after Grenfell. Give themselves £10k pay rise, refuse pay rise for all other public sector workers.
So yeah that **** pisses me off. BUT I do agree with their austerity program. Our debt is too high, it is not good. Yes it sucks, yes I hate the cuts to public services, and yes it's annoying that baby boomers enjoyed decades of frivolous public spending and then millenials have to pay it back through year after year of ****ty cuts. But you can't avoid debt, it will just grow into a much bigger problem if we ignore it, and then we'd REALLY have to pay for it.
I dont know which party had the idea of Hinkley Point C or HS2, but both are terrible wastes of money and neither of them give anything in return, and burn a hole in the austerity measures.
Theresa May has gone up in my estimation after dealing with the Novichok Russian scenario.
Labours idea to spend £100bn+ on top of our current debt is just plain stupid. But they don't care. Jeremy Corbyn is economically dangerous, and is too quick to support dangerous regimes and states because he thinks that "being nice" works. I don't legitimately believe Russia or Putin are good, but I do believe he thinks the best way to go about dealing with it is by being kind and friendly to them. That will never with a country like Russia who will very much abuse that kind of relationship. You have to be tough, tough, tough with countries like Russia.
Corbyns Nuclear disarmament idea is again idealistic and diplomatically + militarily dangerous. No one wants nuclear weapons, and if we do not get rid of them eventually, we will end up using them. Maybe it will be 5 years or maybe it will be 100 years. But if you wield nuclear weapons long enough, some crazy person will get hold of them and use them. I get that. BUT now is not the time for scrapping the nuclear Trident program. We have an increasingly aggressive Russia and North Korea, a fledgling nuclear program in Iran, Pakistan and India, and countries like Saudi Arabia are threatening to develop their own nuclear weapons too in response to middle east instability. The only reason these countries will not use them readily is because of powerful nuclear enabled members of NATO. We need to work on bringing stable and friendly leadership to these regimes and solving conflict in that area before we start abandoning nuclear weapons.
tl;dr
Labour and Conservatives are both bad overall. But right here right now, for as many faults as they have, I think we are better governed by the Conservatives. And I say they gritting my teeth. They are woeful in so many areas, but at least they are somewhat strong defensively and economically.