Obviously I'm trying to get the most out of them, and especially the earlier comments made me rethink my choices. Though as you mentioned, priorities are different for all of us. Asia will not be my priority for this trip. Given the distances that we will cover, traveling with 2 young children (4 year old, 1 year old) we are indeed better off with a RTW ticket in BC vs buying these separately.
Considering FF programs to credit; Iberia doesn't seem to be best in terms of actual avios accrual based on the various programs, mostly at 125%. Alaska Airlines might be an option for my daughter. It would allow her to get MVP at the end of 2024 and MVP gold prior to the last 2 flights in 2025. Need to think if I'm going to switch Iberia to Alaska as well in that case.