If I could have multiple houses, ie more than one personal. I would 100% grab a few small and medium. You can do some nice cozy builds etc in the smaller houses. Part of why I want instanced housing q.q maybe then we can all have more than one house. I will hope... it won't ever happen but still...
I never needed to mess about walling off sections of my small and it was far less daunting to start decorating too. Small house is nice.