Well if it's truly an apartment complex where people rent, I'd go as neutral as possible as you'll have tenants moving in and out often. To help match decor, neutral is best and my eyes see F & L as the 2 most neutrals.
Now, I've heard people call multi-dwelling buildings apartments instead of condos. If that's the case, different story. However, are any of these units lived in or will they be sold after renovating? If they are not sold, neutral is again the key. If someone lives in one, offer the advice of neutrality for resale purposes but ultimately, let the owner choose.