It is more exciting watching a backcourtman who can dominate the point in doubles. There are very few who players who do, the exceptions IMO are Irastorza, Elezegi, J. Arriaga and sometimes Iru and Lopez. The frontcourtman also factors into the equation as far as I'm concerned. For example, with Arriaga in the front, you can't go wrong with an Osa who will catch everything, and not go for a ball thats not his. With a less dominate player like Beitia in the front, its good to have a more aggressive backcourter.