Oh, my god! I had completely forgotton that Tenma went to visit their mother in France! How could I forget this?! I've honestly forgotten more that I initially thought. Looking through the characters, there's so many I had forgot! It wasn't that they were bad or uninteresting; just there was so many!
Interesting. Out of those three endings, I see the first as the most likely to have happened. I could definitely see Johan going into denial about Tenma's innocence, vowing to break him with an even more deadlier ideal; going more insane than he already was. Two would be nice but I just can't see someone like Johan turning back after how far he went. I'd be really interested in seeing how Johan would be if this were the case, though! And if, having reformed, he'd ever meet Nina/Viera/Tenma again.
Regarding the 3rd one, could you explain please? I'm probably forgetting something really obvious, but when did Johan think Viera saved Nina? And from what? The Red Rose Mansion incident?
Yes, Dieter! I never really confused him with Milos as, from memory, Dieter was a much more integral character to the show than him. Speaking of Dieter, I always pictured Trunks thanks to his voice, which made me like him more! I had the same thing with Julias reminding me of Master Roshi, too, which was weird because they're polar opposite characters, ha, but I digress.
I was thinking of the little girl who stayed with Hugo Bernhardt. The one who doesn't officially have a name. Yeah, that "arc" so-to-speak did feel slow but I really enjoyed it. I enjoyed Tenma's training and interaction with the little girl, eventually getting her to, well, be happy again! I loved how she and Hugo, despite what he did, ended on a happy note. And I really loved the Dieter/Eva scences. That side to Eva was lovely to see and helped her character development tremendously. If I remember correctly, she even put her life on the line for Dieter!
All this reminiscing of Monster has reminded me of one of my favourite episodes of the show. The one where Tenma and Dieter hitchhike and are picked up by this old British couple, Leia and Mr. Jones. It was such a simple, kind of filler-ish episode, yet I was hooked. I loved both Leia and Mr. Jones however briefly they appeared. The ending, with Mr.Jones revealing to Leia that he knew Tenma was a fugitive but believed he was innocent, sealed it for me. Up until that point, I loved the episode, but the ending caused me to
LOVE the episode! I was hoping we'd eventually see them again (though I never really expected it) but alas we didn't.
To be honest, I completely agree with what you said about Misa but I just can't help but like her. I admit, when she was first introduced I kind of mentally facepalmed and was like "really?", but she grew on me. I wouldn't say I started losing interest when she was first introduced, but the tone of the show definitely changed which I wasn't a fan of and, like you said, L's death just knocked the wind out of the show. Even though I wouldn't have introduced a character like that myself (especially after a great start to the series) I just took her for what she was (fan service basically), and I just warmed to her. Honestly, I did find some of the Misa/Light/L scenes funny, and the whole "2nd kira" caught me off guard. I just wish they could've kept the tone of the show the same, and introduced a love-interest (as one sided as it was) that wasn't just there for fan service.
All this talk about female characters reminded me of Deadman Wonderland. I think I liked every female character in the show, especially Makina. Shiro, Minatsuki, Karako and Kasuga were all good, too. It wasn't my favourite anime (though the theme song was badass) but I enjoyed it and was saddened to see it only lasted a series. I still plan on reading the manga eventually but I do hope it gets a renewal one day.
Yeah, whilst I was disappointed that Eva and Tenma didn't reconcile, I'm glad they ended on good terms. I still thank that, deep down, they're meant for eachother, though!

To be honest, I thought I'd be alone in wanting them beck together but I'm glad I'm not!
Yes, I loved the dub! Like you said it probably helped with the seriousness of the show, and not everyone being super beings and whatnot. It took me a while to get used to Tenma's voice, and I wasn't the biggest fan of Johan's voice at first (purely shock value tbh), but now I can't imagine them any other way. They were brilliantly done and I thought they were perfect for said characters. I really got from Tenma's voice that he was a nice guy, down on his luck, stuck in this hellish turmoil and just wanted out, and Johan's voice....-shivers-