Marrying age is 14 in Konoha, twelve if you have a bloodline. So while what they're doing is technically legal, it is still something that will be addressed, as you have said, if only to avoid the appearance of something truly awful.
I suspect they will give more grief towards Anko as I suspect they may take whole 'cradle robber' in the wrong way (although I think with nobles it may be similar to our past, where marriages between parties of big age difference happened and people accepted them). Especially if they think Anko decided to pick up Daisuke not because of love, but they may believe she wants more personal power, which to be fair may be pretty reasonable assumption if you know nothing about them and difference between personal powers of them both is absolutely ludicruous. It is completely unfair, but if you don't have all information about them, those assumptions have some logic behind them.
If Anko was clearly a 'servant' here I suspect people would accept her more here as it's clear relationship between of someone with higher status and servant, which those people should easily understand with feudal system being part of their society. But marriage? As 'equals'? Something may sound fishy for them here, especially as other party doesn't offer much, if at all, so this conflict angle is also something I could see. Daisuke won't care, but Anko with her mental issues may.
There is also fanon (yes, it's fanon, there is no support to this in canon) that Anko was almost mistrusted as Naruto outside of shinobi corps because of the whole 'Orochimaru deal'. Once he left, they are suspicious of her being a 'spy' or something. Personally I'm not a fan of this fanon, but if someone wants to make Anko's life even more complicated... it is there.
Honestly, either way, I'm happy that Anko found some measure of happiness in canon after all the crap she went through.
Personally I'm fine with it. People are so offfended with this Anko, but it's also clear she is fine with being plump and personally I like chubby girls myself. As long as she's happy with herself these days, why would we judge her or be annoyed by it? Her choice, her decision.
Yes to both of these, probably.
I think it's a bit... too simple when it goes to Sasuke? Especially in this AU, where he will possibly never go through all the shit that happened in canon. Also Daisuke just revived some of his clan members, so whole 'avengers' shtick with Sasuke looses LOTS of traction to become a thing really. I'm not sure if at the end of the story Sasuke will even fit whole 'avengers' domain when it goes to him as a character.
I think I could see those potential domains that would fit him: jealousy (towards Daisuke according to you WoG), training (unless Lee or Gai ends up being gods as they fit this more), determination (although this one may go to Naruto instead and I think it makes more sense), prodigies (people which are talented could worship him), lightning/thunder (he should become master of that element later on), fire (Uchiha specialty, also he becomes really good with it) and combat/war (I think Sasuke will fit this the most, Naruto mostly fights to protect or help, Sasuke may enjoy more primal part of combat/war, so IMO would fit).
