A friend of mine suggest this site: http://tablethotels.com, and I found a great deal at Hotel Pulitzer Barcelona – a funky little gem in a perfect area. Granted, I only spent a total of probably 10 hours there sleeping, it was clean, modern and comfortable. And as said, a great location on top of/the beginning of the main strip called La Rambla. For a tourist, this is the perfect central location to whatever attraction you want by subway or walking.
The Hotel Bar from the elevator
The view from my room