Depends on each individual preference I guess.

One thing I will definitely agree though, which is the atmosphere. I don't like the broadcast of Serie A and La Liga, in terms of this though. Like I have mentioned, they tend to decrease the volume of the crowd's voices, that makes the matches boring.
For me, La Liga is the most attacking and exciting out of the 3. Tons of attractive flicks and such can be seen there.
Regarding to Serie A, it depends. I don't like to watch the big 3 play, like I said. But the smaller teams are definitely nice to watch. As for attacking or defensive, I can't use the big 3 to judge the whole league. Last season, Lecce scored a massive 66 goals in 38 games, second highest (1 goal behind Juve), but conceded 73 (most in the league). They played incredibly attractive football. Way more attractive and attacking than the big 3.
I have to agree that most people wouldn't like Serie A, cos it's not as fast paced as EPL. But to me, Serie A has most of the ingredients which I want, in terms of watching football.