Go with this one without a doubt.
The 100% Eidolon is far more important than Hime are. For one, it'll allow you to get friends and give you access to good Eidolons across the board. Like me, I am ID 1475274 and I'd love Kirin friends
The most important thing in Kamihime is your Grid (and your 100% Eidolon). So if you work hard and fill your Grid with skill level 20 Thunder Disaster Axes (or better), you'll do fine in most content. That will take you a long time and a lot of hard work, though.
And let me remind you again that Thunder has very few good R and SR Hime, which will make your task rough. Kirin will help you a lot, though.