I've been following Aguero eversince I watched him played at the U-20 FIFA WC. The tournement inc. Pato and Giovanni Santos. They were touted as the most promising youngsters. However IMO Aguero, Golden Boot, Golden Ball of the tounament was the only 'man' among the 'boys' creating and scoring goals from unlikely places and situations.
Kun brings another dimension (updown, sideways, unlikely angles etc) to the scoring department rather than that of say Bellamy or Ade (up and down) or Tevez (top of the box etc).
Pato is doing quite well apparently.