Who each tool is really for
HubSpot
HubSpot is generally chosen by organisations that want a connected sales and marketing system running quickly, with conventions supplied rather than invented. It suits companies whose biggest risk is adoption: teams that have already abandoned one CRM and cannot afford a second failure. The product is designed to be understood by people who do not consider software part of their job.
Salesforce
Salesforce is generally chosen by organisations whose process will not bend to anyone else's conventions. Custom objects, layered permissions, approval chains and integrations with in-house systems are ordinary requirements there. That capability is bought with configuration effort and a named owner, and it is excellent value when the complexity is genuine and expensive when it is imagined.

