stopover recommendations for RTW ticket
Going for a conference in Tokyo in October and then a meeting in Zurich the following week. I'm thinking of buying a RTW ticket. SFO-HND and ZRH-SFO are easy but I would love to fill the Asia to Europe with stopovers for a day or two. I was thinking of Seoul (I only go there for business so leisurely time may be worth my while), Istanbul, Zagreb (I would prefer Dubrovnik but that seems a trek)?
Should I ticket RTW on United or SFO-HND ZHR-SFO on United and take Asiana/Turkish/Lufthansa?