While I would never discourage anyone from visiting Wroclaw which is indeed a nice city, I still vote for Warsaw. It's Poland capital and its cultural, political and economical center. You will find a huge variety of museums, cultural institutions and tourist attractions of all kinds and interesting architecture.

Choosing between Wroclaw and Warsaw depends on whether you want a "fairytale charm" or a "cosmopolitan pulse." Wroclaw is often described as one of Poland's most beautiful cities, famous for its colorful Market Square, dozens of bridges over the Odra River, and the whimsical 600+ bronze gnomes hidden throughout the streets. It is quaint, walkable, and feels like a hidden gem. Warsaw, on the other hand, is Poland's bustling capital—a city of resilience where modern glass skyscrapers stand next to a meticulously rebuilt Old Town. Warsaw offers a much deeper dive into history via world-class museums like the POLIN Museum and the Warsaw Rising Museum, and its nightlife and culinary scene are arguably the best in the country. If you have only two days and want a romantic, picturesque getaway, choose Wroclaw. If you want a grand, fast-paced capital experience with endless cultural options, Warsaw is the clear winner.