Progressive. I know opinions vary, but I would quit riding before they see a penny from me. Got smacked by someone insured by progressive and their subsequent actions were outright illegal. "Send us your signed title and we will send out an adjuster and determine if there are any payable damages." How many little old ladies fall for that one? When called on it, was told both that it was their standard practice and that it was an error by an assistant. Crooked, crooked, crooked. It got worse. Never.
As above, it's almost impossible to compare what folks are paying with what your coverage will cost YOU. Deductible, location, etc all play a part. It's best to just take a little time and call your agent for a quote or two and then shop that around locally.
That said, I'm 47, in rural California, clean record. Current full-coverage quote on the 2010 990 is $268/year.