A really interesting crossover could be where the Eva pilots are inserted into the Game of Thrones world as special protectors. They use their piloting skills and combat abilities to protect a particular house or kingdom. For example, Rei could be a mysterious figure protecting the Night's Watch, with her calm and stoic nature fitting well into that cold and desolate place.
Perhaps. The Evangelion fandom is known for its active participation in creating and consuming fan works. 'evangelion the one i love is fanfiction' could be popular if it manages to resonate with the fans' emotions and expectations. For example, if it delves deep into the complex psychological aspects of the characters, similar to the original series, it might gain a following. Also, if it provides a fresh perspective on the love stories within the Evangelion universe, it could attract a lot of readers.
Well, it might involve the political intrigue. The complex politics in Game of Thrones could be combined with the NERV organization's secrecy in Evangelion. Maybe the different houses in Game of Thrones are vying for control over the Evangelion units. And the pilots of Evangelion could be seen as pawns in this political game, just like many characters in Game of Thrones are used by the powerful lords.
In general, the Evangelion mangas are considered good. They expand on the anime's universe, providing more depth and character development. However, it depends on personal preferences as some might find the style or pacing not to their liking.