@antnumber3056 Here you go: my Animorphs rankings!
The image description might be easier to read than the image itself; there are so many Animorphs books. Notes on each tier:
S: Tried to reserve this for the books I love that also have widespread fandom acclaim. No surprise Cassie dominated the top and bottom of the list, with Rachel and Jake more in the middle.
A: This was where I had to work hard to constrain myself to 6 approximately equal-sized bins. Almost everything in B and C spent time in A before reluctantly getting moved down.
B: Books I think are well-written and enjoyed, but not as WOW as A or S tiers.
C: Books I think are well-written, but didn't enjoy as much, often because they're a little dreary or not as fun (#3, #16, #53).
D: Reserved for the ones with moderate-to-severe pacing issues (#10, #42, #30, #11) as well as the three nothingburger Cassie books (#14, #24, #44).
F: Books where the continuity is so off that plot (#39, #41, #48) or character (#47, #51, #43) has serious flaws, and/or where an attempt at tackling social issues aged like milk (#40, #50, #47).