Standard Workflows - Additional approvers

Hello MDG Experts,

Just wondering if it's actually possible to add approvers to the standard workflows?

We also have a requirement in our client wherein some of the finance master data objects require 2 approvers, while some require 3.

So I assume we need to assign 2 different workflows (one workflow for 2 approvers and another one for 3 approvers).

Or do you reckon I'm better off using Rule Based Workflow?

Thanks!