I completely agree with Robochocobo, and I'm in awe for their ability to phrase their argument and opinions so eloquently. To be honest, I'm really hoping for Bern and Maytag to break up at some point. I can sort of see it happening for drama's sake, and then I expect they'll come back together later on, even though personally I'd prefer them not to. All these hints and suggestions and foreshadowings about how a relationship built upon conflicting opinions and philosophies is doomed to fail make me anxious for May and Bern's to fall apart. It just seems too impossible. The way there's always some conflict between the two opposing ideologies. Obviously some of the major ones were such like in the earlier chapters, or in the caravan with Nagelring, but even seemingly lesser ones (which I anticipate may play a larger role in the near future) like Bernadette and Maytag's discussion about the new girl Vennice, and whether or not Bern should go out with her. Not only has the fidelity/hedonism thing been done and beaten to death, but Bern is kind of starting to seem like a one-dimensional character. Unlike the spontaneous Maytag, you can really predict how Bern is going to react to any given situation. That, coupled with the sort of doting supporter that we see when Maytag proclaims her desire for a soundshow, and Bern replies "I'll support you however I can, May!" makes the whole May/Bern (Berntag?) shipping kind of cloying.
In contrast to that, I'm a big fan of Crestag shipping. Yes, I'm making up fandom terms. Brick me. Based on what we saw in the first few chapters, Crest has the capacity to be a very dynamic character. He's fairly neutral for the time being, and he seems like he can be more easily swayed to different (non-knight) viewpoints. He's also adorable in his spluttering, highschoolish attempts at asking Maytag out. One of my favorite scenes in the whole comic so far is in the first chapter, only a few pages in, when Crest is turned down by Maytag and he laughs it off, but then pulls his goggles over his crying eyes. Very touching! It's these components that I think make Crest a perfect foil for Maytag, and if Maytag must be the central character then I think those two are much more complementary. While Crest is far too introverted and needs to come out of his shell, Maytag is a little too outgoing with herself and needs to be reigned in. This is what it seems Suspira and Bernadette are doing, to their respective characters. But both of these trials of character development could be seen working so much better in those first few chapters, during Crest and Maytag's mini-fake-date. Already, Crest was becoming more outspoken as Maytag was coaching him (and he was, again, adorable in everything he did.) And then on Maytag's side, when she told him she "had a boyfriend" but was willing to cheat, it really struck a chord with her when Crest reacted so strongly. THAT'S why I think they'd be a better pair than Maytag and Bernadette. Bern's upset whenever Maytag does things like that, but she said herself that she likes when Maytag's content and just kind of lets it happen, to which Maytag protests and says she shouldn't. Crest actually asserted himself about how he felt, even though in that situation it was not in his most self-fulfilling interest. So while we continue to see the Berntagging continue on long into the later chapters, hugging and kissing and talking to each other through magic rings, I agree with the OP that Crest is the most interesting character and to me, those first few exposition chapters are my favorite.
(Why do I feel like I've just written a school paper analyzing works?)