Hi all

I'm currently oneworld sapphire with BA (silver) but I'm considering switching alliances. Im based in Dublin & generally fly transatlantic business about twice per year which usually renews my status. I fly a few European short hops in Y on top of that. So which star carrier would be best for me to credit to to earn status? Currently AC, UA, TK, SK, LH, LX fly from DUB but that's not to say I have to credit to them. I suppose I'd like to reach Gold as lounge access is important to me and was previously Gold with BD

​​​​​​​Thanks for the advice