I flew Saudi on a GVA
on 772,744,743 and M90 back in October 2002.
Aircrafts are very clean, Service on board was good (similar to KU
), in the 744 and 772 there are PTV and in the M90 and 743 IFE. Food is halal but good and on DAC-RUH I was upgraded to F and had seat 1A! Keep in mind, services to/from Europe might be better than from KSA to Asia (especially into/from Bangladesh).
Airport in RUH is more modern than JED but in JED there are more shops. RUH is easy to transit between SV
and other international carriers since terminals are connected and in JED there are different terminals.
In case of any other questions, feel free to drop me an email.