The medical officers are always a "love them or hate them" thing for me, there's non e of them I just like or dislike. There are however some I have changed my mind about over time.
Love:
1) Beverly: Compassionate, interesting and played by a good and beautiful actress. Dr. Crusher should have gotten way more screentime.
2) Bashir: Say him first in "The Quickening" and loved the character from there. Find him completely nauseating in early seasons, but he grows out of it and grows into a better character.
3) Pulaski: I am put of by her dismissive manner and harsh attitude, but if you watch the whole of season 2 (I know, it's hard) you actually can see her softening up considerably, especially towards Data. While I find her conception as "McCoy with tits" rather pathetic, she became more towards the end and it would have been good to keep her as a recurring character and Beverly's foil.
Hate:
4) McCoy: Firt of all I don't find his racist remarks towards Spock endearing. Second he's too much the old fashioned man's man for me to like him. The introduction of his estranged daughter, (had it happened), would have likely changed my mind about the character considerably (depending on how it had been handled) but as it is...no.
5) The EMH: Do I really have to go over my: narcissistic, solipsistic, egotistic, (other multiy syllable word) routine about him again? If I was Janeway I would have deleted him on day one and picked up a new doctor from some surrounding planet. Until then...meh we have a pilot and an elf, they can handle the sickbay.
6) Phlox: Turns out I was remembering "Dear Doctor" wrong, Phlox actually was the one in favour of not helping that random civilization with their epidemic, not Archer.