Start with the recovery requirements, not the product names. Which systems must come back first, how long can each be down, and how much data can the business afford to lose? Get the people who rely on those systems to agree to the targets.
Then ask each provider to demonstrate a recovery against those targets. Cloud backup storage and the ability to run a server in the cloud are different things. Check which workloads can boot there, how users would connect, what dependencies need to come up first, and how you would move everything back after the office is rebuilt. Include cloud compute, network access, storage, and recovery charges in the comparison.
A similar quote doesn't mean the same service. Get the responsibilities in writing, especially who declares a disaster, starts recovery, monitors backups, and tests restores.
glossary_of_gadgets:
Also ask what happens if the managed provider is unavailable. A team of one needs a recovery procedure and access that don't depend on a single person answering the phone.