We went as absolute beginners in March 2016. We only did two areas but the best by far was Bialka Tatrazanska which was a nice little series of valleys which had decent snow making facilities. Our guides at Whiteside holidays were excellent, the price was pretty much unbeatable and if you want cheap food and drink for your après this is the place! Nightlife was lively too.
It snowed while we were there but there wasn't much cover on the hills. If I went again I'd want to check Kasporwy Wierch which sounds like the best area for intermediates and up.
For non skiiers/boarders there are some good spa/baths and some quaint markets. Its cheap for shopping too and not far from Krakow if you want to do the city thing (about 1.5 hrs).