It's true that IB+ doesn't distinguish between business fare classes for BA flights (and AA), but be careful on IB Group metal and some partners like QR, where it does make a difference in business. (It makes a difference in economy no matter the airline; discount Y always earns a pittance compared to full Y.)
You can see specific earning tables (click on Avios tables, badly named links) for elite points: https://www.iberia.com/es/iberiaplus...lights/iberia/ https://www.iberia.com/es/iberiaplus...qatar_airways/