Which Model to Purchase

Well.....now i have created a new dilemma! I am going between the Palermo model and the Belford model.  I thought i was sold on the Belford model, then i "played" around with the Palermo, and I like it. 
My older teenage children want to set the basement up as a 2-bedroom apartment and the Palermo gives a better option of this with less construction later.

If I choose the Palermo, I will not choose the Bonus bedroom option, as i would with the Belford model, i dont think....

I am looking for some ideas, thoughts, concerns, or "wish I hads", from some current Belford and Palermo owners.  How do you like your layouts?

I sign a contract in 2 weeks!! Building a home for my Ladybug!!!

Thanks