I'll reiterate that I have immense respect for Kamiya, I met him and he's a truly amazing guy.
I just don't understand people calling it a rip off. It it was a rip off, it would be a piece by piece copy of SSB, mechanically and aesthetically. It isn't.
It plays differently enough to where it feels like its own game. Mechanically the characters play very differently from one another and their attacks just feel better, mechanically, than the ones in SSB.
A problem I had with SSB was that typically I felt like combos felt improvised, the combos in All-Stars actually feel rewarding, that they can be switched around and improved on more. This leads to my second gripe with SSB - everything was too situational and focused on guiding your opponents to the edge and ringing them out. All-Stars is the opposite of that.
Sure it's inspired from SSB as it is a 2.5D mascot brawler, but it definitely does play and feel different. Superbot hasn't tried to deny that All-Stars is inspired by SSB, but I just really dislike the whole
"it's a rip off" mentality. It's fun, it has unique things about it, so who cares.
People need to stop hating just because it has a chance to be a direct competitor to SSB. I understand a lot of this is because of people denying that it's inspired by SSB, but there's also a lot of people saying it's a rip off, and I think that's not the case at all.
I used to be completely against Dante's Inferno and Darkstalkers purely on principle, but those are pretty fun games in their own right after I played them. They borrow heavily from the source material but they're unique, fun experiences. The same thing can be said of the Castlevania reboot, originally I hated it but it's a really fun, awesome game.
Anyway, that's my final two cents. I've played the beta a lot and I love the game. I'm a veteran of SSB and I love that franchise, All-Stars being a reality is exciting as both a Nintendo and a Sony fan. I hope that it pushes the SSB team to make the next one a true successor to Melee (yeah I'm one of those guys). In the meantime, I'm going to keep playing the beta as I excitedly wait for the full release! Cheers