I want to give my opinions on the newcomers since I pretty much hated every single newcomer from Smash Wii U/3DS.
8/10: I don't care about splatoon much, but they definitely have a fun moveset and they are a good part of Nintendo history. I wouldn't want them anyway other way. Perfect representation of their game and characters.
6/10: I really do not like the fact she is a clone, but it's better than nothing...I also can't see her having many differences to Peach. Her versus the other echoes, she seems like a lack of work echo. Also a certain person made me really REALLY hate the character, much like how I hope I never see Waluigi again after his "fans" ruined him for me.
10/10: I've been waiting for this boy for years now. What an amazing gift that we got. I love his violent moves and they really made Ridley feel more than just a mindless beast. He looks and feels violent but with control. His size was perfect too!
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9/10: I never got into Castlevania until a few years ago. I wasn't sure how they would be able to put Simon in the game, but by gosh did they do a fantastic job. I cannot wait to try out both Richter and Simon.
10/10: He was my most wanted character for years...I remember when Brawl was coming out, The King was all I wanted. Smash 4 failed me, and I did not expect him for this game. But when he showed up, I screamed. So many years of waiting and I finally got my dream character.
7/10: I wanted him in Smash 4. It's Roy! What can I say? I like they tried to make him slightly different.
7/10: The little changes is what makes me excited. I am very excited to try her out. I absolutely LOVE how different her animations are.
8/10: I normally could give a rats ass about Animal Crossing. I enjoy the game but I don't obsess over it much like a majority of the Internet. I was so sure she would be a massive echo of the Villager but, hey color me impressed, they did a decent job with making her much more different.
8/10: I like Ryu and Ken looks really fun to play as....even kind of being just a faster Ryu. Not much I can say but I love the fact they added him in.
:ultincinceroar:10/10: This is the shocking one for me. It's the character I never knew I wanted. Let me start by saying I absolutely HATE Pokémon after Diamond and Pearl. I think they game became something it shouldn't and they added in a ton of details that I could care less about. Designs absolutely suck IMO. But Holy CRAP do I love incineroar's design and especially what they did for him in this game. He doesn't even remind me of a Pokémon character. This is SO SO SO much better than The Grass Owl would of been.
7/10 I have no clue what to even think about this guy. But It's free and it's fun. That to me is important. I welcome it with open arms.