@Inkan1969  
It’s been two years since she was introduced, and there are a grand total of 80 images tagged with her. That includes official pieces like this, screencaps, mis-tagged images, etc. I think it’s safe to say that almost no one in the fandom cares about her.
 
Granted, I want to make clear she’s not the most-hated, most-disliked, or most-anything pony, but at a guess, I’d say she has maybe a half-dozen fans or so. Probably because of her odd color scheme, mostly.

@Background Pony #9A0E  
When was Prim the least favorite pony?

Oh hey, the fandom’s least favorite pony, the former moe-of-the-month mare, and the antagonist that established the color pattern for future antagonists.

hope we get more episodes with Coco and Suri this season :)

Then leave.
 
It has more jerks per capita than the capital.

@Background Pony #F589  
Oh yeah, the “Comeback Kid.” Her career has gone nowhere but up since she pulled out fashion week and struck out on her own.

“…the latest and greatest works of couture by talented ponies such as Miss Pommel, Prim Hemline, and Suri Polomare!!”