I too must be Honest that I hate Rose and my reason for that.
1. everytime i go to Ereda (which is rare because how "full" it is) there is always a rose... they destroy always the fun especially Black Massacre
2. Another Female Character and of course a well-build Body for typical Fan service.
3. Play-Style of many characters (Chung, Ciel and Rena)
4.I don´t hate her because she is from DFO... it´s more like there where soooo many more good options for example the Priest or even the Male Mage (tough the male mage has more then 4 classes.)
5. I played everyone of her classes... though Prime Operator was my... well least hated of the for... I somehow don´t like too play her.. kinda awkward feeling can´t explain it really.
Overall.. Yes i hate her but she is not the only one i hate Chungs, Ravens, Ara and still... I tolerate them, i hate them that doesn´t mean that i want them to be removed... Sometimes it is nice having diffrent classes for Pve to see how they play and how they work togehter. I don´t follow the way of hate, i just tolerat it. Players likes Rose ? Fine for me he/she has a opinion and doesn´t force me to like and other way around.
Sorry if my english is shit, since it´s not my language.
Oh it pvp... never go pvp because don´t like it and so i can´t judge her.