Which is best 1st party or 3rd party insurance?
A first party can be covered under personal accident cover and get own damage cover for his/her car with a comprehensive insurance policy. A third party can be covered under a third party motor insurance policy. A first party receives insurance benefits only under comprehensive insurance as part of own damage cover.
What’s the best cheapest option for auto insurance?
Geico, Progressive, USAA and State Farm are some of the cheapest companies that let you get quotes and buy a policy online. It's often cheaper to buy car insurance online than it is to work with an agent, since you won't have to pay agent fees and you can often get a discount for buying online.