Chrome is more secure this means that you have less of a chance having your data compromised including any and all data on your machine by an unknown 3rd party. Since Chrome's data collection is known it can be incorporated into a simple threat model. You know what is collect and who collects it, most security aware people will be OK with Chrome collecting some metrics that in all fairness are likely to be collected anyhow unless they block every JavaScript and Cookie on the planet, do no use any Google service or a service that uses GA in exchange for not having to worry about their browsers being pwned.