I liked HMS the most. it allowed you to launch any bey in left or right rotation without having to swich out a spin gear like in previous systems. in MFB and 4D only a few could do that, and then only with certain parts thus limiting some of the customization. I also would have loved to see magnets play a role in the MFB to Zero-G systems. As for Engine Gear I liked the concept of an extra boost of speed, but it never seemed to me to be an entirely perfected concept, as advanced as it was.
Beyblade transcends race, gender, age, social class, economic class, ect. it is a hobby to be enjoyed by all, regardless of labels. may we treat others with the dignity and respect we all humanly deserve.