Thank you all again for the amazing input.
I have another question...
I understand that Airlines open up their award space at different times. One of the links suggested here say the following:

Air Canada Aeroplan..............................356 days
Air France Flying Blue............................305 days
Alaska Airlines Mileage Plan....................331 days
All Nippon Airways (ANA) Mileage Club.....356 days
American AAdvantage............................331 days
Avianca LifeMiles..................................360 days
British Airways Executive Club................355 days
Cathay Pacific Asia Miles........................360 days
Delta SkyMiles......................................331 days
Emirates Skywards...............................340 days
Lufthansa Miles & More.........................359 days
Qantas Frequent Flyer..........................353 days
Singapore Airlines KrisFlyer...................355 days
United MileagePlus...............................338 days

But I also read that some airlines open their award space to partners before they do to their own frequent flyers.

Since so far I'm looking at the following airlines: BA, AA, EK and SQ
Do you know if these airlines do open to their partners the award seats in Business before their own members? If so where do I find this information?

Thanks!

Leonardo