When you're into aggresive skating, want a lightweight plate, with a lot value for money, the Sure-Grip Avenger/Avanti series might be a good choice.
The Avanti with its 10 degrees kingpin angle is a more responsive plate with a traditional feel, good for rhythm skating and dancing.
The Avanti comes in Aluminium and Magnesium versions.
Both strong and light, the magnesium version is much (48%) lighter with only 258gr for a size 5 (150mm)!