On beginner boot and blade sets, it usually tends to depend on whatever blades are available at the time the boots are ready for them.
To put it bluntly, the beginner blades are not something you need to worry about because they're all very, very similar. The quality of the steel isn't brilliant and the rocker is pretty flat and they are designed that way to enable beginners to master the basics properly, without scaring themselves witless or getting too out of control.
When the time comes to progress to separate boots and blades, then you get to choose between John Wilson Coronation Ace or MK Professional, or possibly Legacy 7s. (Coronation Ace are always my recommendation.)
