I'm so sorry that i'm the first comment but I hate Alois so much
He could've been an okay character if they didn't focus so much on fanservice first of all, the entire plot of season 2 is just a mess because they made it almost entirely for fanservice that trying to make the story make sense was an afterthought, it feels like they just put a bunch of tropes in a hat and pulled some out and then tried smashing them all together, trying to make a decent story at all just wasn't really on their radar as long as it was still cringy fanfic worthy... I don't mind characters that are just totally vile people really as long as it's relevant to the plot and actually moves it forward, but Alois was just the absolute worst for absolutely no reason and next to Ciel it's even more pointless because Ciel ends up so much better than him anyway just from being slightly less cruel and childish. But the most pointless thing of it all is the fact that none of season 2 is actually canon, like absolutely nothing, so it all feels a bit like 'well what's the point then?', only about half of season 1 was canon to the manga apparently but it's not that hard to work out where it starts to diverge and I haven't touched the manga. Every Black Butler release after this season
has in fact been canon though and season 3 is my favourite, literally everything that came out after season 2 is a 10 on my Anime List for me.
I didn't totally hate watching season 2 since most of my critiques of it aren't really that relevant when you consider that literally the entire point of season 2 was for fanservice and milking the hype as much as possible rather than following the actual plot anyway and I did have fun watching it (basically everything except for the weird fanservice... which is most of it) but looking at everything that's come after it i'd much rather the studio just skipped making season 2 all together and made something else that actually followed the source material, cuz everything that does follow the source material has been phenomenal.