I like Pinky Nails for these reasons:
They are fast, clean, just re-painted inside so its cuter now, have a fair selection of polish colors that are not old and clumpy, have some mags to read while sitting there getting your feet sloughed and most importantly, they do a great, meticulous job with the painting part.
The only drawback for me now is that they have not switched over to the gel polish. While I dont get that type of polish every time, I would like to have the option since I like the people who run Pinky. Never a wait though when I have been there which is a big plus!