Then our monsters would probably be based off the effects of the switches: Magic Hand giving a giant claw-game themed thing, Claw giving us a Wolverine expy, something like that. The Horoscope switches would probably give Fourze super modes.

next:
1.what if one of the other greeed was the mentor instead of ankh?

2.what if shoutaro and Phillip decided to keep the all 26 T2 memories and use them instead of the memories they had until then?

3. what if decades plot actually made sense?

While Yuki the Gemini zodiarts, what if Gentaro was the ophiuchus zodiarts?

Hahahahahahahahahahahahahahahaha.....

We'd all pick another rider series to hate on,

I don't hate on Decade because it's a popular series to hate on. I hate on it because it's a piece of shit.
(Hell, I was hating on it back when it was considered one of the best, for both newcomers and veterans for the franchise)

But if it had a coherent plot, honoured the past riders and didn't end in... its ending?

Way to be a hipster about it. :p

I was indifferent towards it, until I got to the ending. Gosh...

ok i really asked just because i wanted to see what people will answer

to me decades plot actually makes sense(probably because iread books like Stephen king's dark tower series so the whole "alternate version of existing characters isn't that far fetched for me) if you want i post my explanation for the series along with some theories i have