Great question! You can compare your options based off

1) Reputability - Pick well known, trustworthy companies to get your quotes from. 

2) Coverages - Are the companies all including the same coverages in their quotes? If coverages aren’t matching, ask the providers to make changes to the quote, so you can get the most accurate side-by-side price comparison. 

Side note: There's insurers out there that won't hesitate to remove coverages in order make the premium cheaper and more appealing. This is not honest or moral but unfortunately clients probably won’t notice or care until something happens and they’re not covered. Make sure you really look at the quotes.

3) Premium - Of course you want the best deal. But if it looks too cheap… there’s a chance that company may go insolvent/bankrupt. Which means, they’re off the hook when it comes to paying for your loss. In the beginning you save pennies, but in the end you may lose everything.