Ruiz posted an .822 OPS in Reading - at age 25.
.812 OPS in S/W-B, at age 26.
.894 OPS in S/W-B, at age 27.
Rafael Marchan is 22 years old.
In 2001, at age 22, Chooch put up a .680 OPS in Lakewood, low-A ball.
In 2019, at age 20, Marchan posted a .686 OPS in Lakewood.
In 2002, at age 23, Chooch posted a .592 OPS in Clearwater.
In 2019. at age 20, Marchan posted a .573 OPS in Clearwater (limited time).
Chooch reached AAA at age 26, reached the NL at age 27. Marchan played at both these levels at age 22. Yes, he struggled at AAA - but he was four years younger than Ruiz at the same level, and five years younger than Ruiz was when he debuted for the Phils.
I could agree that it's premature to compare Marchan to Ruiz - but not that there's anything in Marchan's minor league stats to date that suggests he's somehow "behind" Ruiz - you well know how important the significant difference in age at each level is. We don't know that Marchan will continue to develop - but given that he's been ahead of Chooch (performing at a similar OPS while 2-3 years younger) at several levels, it appears that his ceiling is likely higher than Ruiz. If Marchan continues to develop the way we might expect from a 22-year-old who has already reached the majors, you may be correct to suggest that Marchan is not 'in the same league as Carlos Ruiz."