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What game is Game B even supposed to be?
X/Y and Sun/Moon had character customization.
The region/routes were all new in their respective games, so that's meaningless.
The stated 5 hours of breeding is arbitrary, and especially meaningless when we don't know how long the equivalent will take in Sw/Sh even if it is shorter.
And if you really are comparing an older game to Sw/Sh, then you have even less to stand on because what is acceptable 5 ~ 10 years ago is not necessarily what is acceptable for a game released today.