I prefer Tears, Warrior. (I like the unique skills there more). I'm currently playing as Cyril 1, I want to explore the story and the map as well.
Added 1 minute ago
It's not that important, in my opinion. I developed him in Tears and played him in the Epilogue on the Angels map. If you develop him in Blood, you can play him in the Epilogue on the Faceless Ones map.
So, to play both maps, you need to have one hero in Tears and one in Blood in the final.
When you get to the campaign for the Dark Elves, let me know, I'll show you something ;)