In my opinion, Wroclaw is more cosy, compact and definitely a great place to live in (I honestly long for this city since I have moved to Prague). If you are looking for breathtaking architecture, Krakow wins. read more
Wroclaw is not as large a city as Krakow, but very similar architecture but being smaller i find it even more beautiful than Krakow, being smaller i found locals much more friendly and accommodating, that's is not to say Krakow was not friendly but like any large city i find people are more guarded in larger city's. read more
The city itself is beautiful & as traveller said there's much more to do in the surroundings. Also if you get bored of it all, you can hop to Prague or Bratislava easily. Definitly Krakow. read more