I would keep re-rolling as Fenrir, Archangel and Huanglong only start out at half the power of a 100% Eidolon and in general struggle to compete with Event Eidolons that are much easier to Limit Break and level to their full potential.

Of those accounts so far I would pick Light Nike and Archangel as they match elements, the Kamihime is of Limited availability and there's an upcoming Dark Union Raid that you could leverage some alright prizing out of given that you'd have elemental advantage.

The account creation limit resets after a day or so, so you can use each of your IPs again the next day.