Pulaski may not have been super likable at first but she was interesting from her first episode, she could be abrasive and rude but at the same time she was really committed to her patients (and that was often the reason for her rudeness in the first place like when she not reported to Picard when she came aboard instead opting to immediately take care of Deanna), she was willing to risk her own life when she treated the quarantined kids (Unnatural selection), she had a good rapport with Worf (Up the long ladder) and I liked her quirks like disliking the transporter of being a closeted Picard fangirl.
Her biggest crime was that she wasn't nice to Data but why would she? AI is a thing in the Star Trek universe and no one has ever been nice to them before. Just because Data comes on legs doesn't mean she has to immediately adjust her attitude and treat him differently than the ships computer. She had to learn that he's a person, that's an arc, by the end of the season she was actively cheering for him and encouraged him (Peak Performance).
Pulaski had more personality and character development in one season that Crusher had in six. I don't dislike Crusher but compared to Pulaski she was bland.
