Salazar/Alonso bring a higher tactical ceiling: Salazar’s control/decision-making should stabilize Alonso’s more aggressive phases and tilt long exchanges their way. Bellver/Aguilar can compete if they speed up points and attack second volleys early, but in P2 conditions the steadier pair usually prevails. Slight edge to Salazar/Alonso, especially if they win the battle for the middle and keep errors low in the cold indoor Gijón environment.