Zoho MarketingHub and HubSpot Marketing - What are the main differences?

Zoho MarketingHub and HubSpot Marketing - What are the main differences?

We're evaluating our tech stack right now and while we primarily use the Zoho ecosystem for our internal operations, we're putting each piece in the system under the microscope right now. 

One thing we're evaluating is whether we should be using MarketingHub, or HubSpot Marketing to more formally build out our marketing funnel. Does anyone here have real experience with both that can chime in on the differences and strengths and weaknesses of each? (Fully recognize we're in the Zoho forum, but any objectivity may help.) 

Look forward to seeing what you all think. Thanks!