Brussels or Barcelona?

Travel Info
I got accepted in Brussels and Barcelona for MBA program. I'm not quite sure where to go. Can someone tell me pros and cons of both the cities? Where would you want to live? Which city is more expensive?

Travel Tips

Take Barcelona!
Not Brussels here in Belgium you would be disappointed, it's cold rains and not good to live here and more expensive then Spain.

Others
not sure, ive heard good things about both. Barcelona is where everything happens as for as any entertainment goes. My husband and I are planning to go there (Barc) in march.
i say barcelona,
chin
Not sure if you mean Brussels, Germany or Brussels, Belgium...
But Barcelona is awesome. It's sunny and warm and there are great beaches, shopping, nightlife, restaurants (especially if you like seafood!), and public transportation. The subway in Barcelona is easier to use (in my experience at least) than Belgium's public transit. I've never been to Brussels, Germany, but I'd rather go back to Barcelona than Brussels, Belgium because there is just soooo much more to do in Barcelona.
Barcelona, hands down, friend! As good as it gets in Europe. Congrats.
I'm French, and I live in Brussels for 6 years. I really love living here, but if I had to make the choice for 1 or 2 years, I would definitly choose Barcelona. Brussels is really a great place to live, but I miss the sun and the sea!!!!!

Whatever your choice is, I hope you'll enjoy your stay in Europe!
Barcelona, for sure!