Work in the property insurance claims space as a vendor. Pre ACE, Chubb was the premier personal and commercial US carrier by far. I'm not sure they're as great as they once were but still better than all most all of the other carriers. It's really more that some others are trying to come up to Chubb's level than anything else with policies for high net worth clients. One piece of advise for everyone, especially with home owner policies is to review how long and what expenses they will cover if you're unable to live in the house/condo/apartment. Most policies do not provide enough time to rebuild/replace the property, especially the likes of Allstate and State Farm. As an example, had a relative living in a high rise condo, fire on the roof with water damage to the top 3 or 4 floors. They were out of the unit for 11 months, Chubb picked up everything including their meals to live in a very nice hotel. The Allstate and SF policy holders only had 60 or 90 days of expenses covered, the difference in premiums from Chubb to the others was in the $200-$400 range more.
Travelers is also a very good carrier for boats, etc.