[Sunstrider]

Oh, boy.

-Futanari. I really hate when you end up with a wolfgirl with breasts the size of cantaloupes and a dick that could put a horse to shame.
-Skin rippage. It's cheap.
-Poof TFs.
-Monstergirl TFs. Give me terrifying monsters, don't give me anime girls with accessory tails or spider legs.
-Quick TFs without context. It's a pet peeve of mine, adding context and fluff to stories. I hate reading something like "here's Mary, now she's a werewolf with huge tits, done!"
-When a character doesn't go through mental changes. I mean, they're transforming into something that's not human, they should adopt at least some predatory, animalistic or territorial traits in the process.
-TFs with weird, exaggerated anime expressions.

I'm pretty cool with male TFs, identity loss and reality alteration, tho.