Where I work, it's not a matter of preference, it's a matter of security policies. If we had the enterprise version of Google Docs, with the policies applied there, and managed corporate accounts, that would be a different story. In that case, the policy would push us to Sheets instead of Excel. Same story, but a different destination.
The OP didn't really frame how this question came up. But using what all your co-workers use and staying in the same ecosystem has a lot of value, even without sensitive data involved. If the whole company uses Excel, no one wants to deal with the one person using Sheets, and vice versa.