Barcelona is probably the most lisp friendly city in the world. What’s more, with it’s dark narrow streets bursting with life (so long as you head there at a civilised hour, like after 5) crazy Disney Land architecture and fiercely proud, seriously arty and cosmopolitan people it’s pretty visitor friendly too. The unhealthy rivalry between Madrid and Barcelona plays itself out in more places than the fútbol field. Unless you want to endure at least an hour of one-sided conversation in which you are permitted no input or respite, never ask a Madrileño what they think of Barcelona, and vice versa.
What I will say about Barcelona is this: there seems to be an actual commitment to contemporary art and design with an actual centre dedicated to the stuff – Museo de Arte Contemporáneo de Barcelona – right in the guts of the old town where I spent a tidy afternoon.