Despite the unknown discs and drivers, here is the order of my preference of those layers:
1. Dranzer Flame. I am not so familiar with BSB series, but I think this would be a totally new release for me. And this Dranzer Flame looks awesome.
2. Valkyrie. This is somehow a very old part, but I think it is still a very powerful attack layer now (if TT can enhance its teeth), and looks so nice.
3. Guardian Kerbeus (yellow). gK’s teeth are awful, but it is a very useful layer for stamina. And yellow recolored layers always looks cool (yellow D2, Y2, B2, etc)
4. Guardian Kerbeus (blue). I just think it’s color is not so good as the yellow one.
5. Beat Kukulcan. Although it is a new layer, it cannot interest me. Its gimmick looks not so useful, and its shape also looks have no enough attack power.
6. Gigant Gaia. G2 was a very good layer that can be used in defense combos, and I very like it. Unfortunately, G2 has been outclassed by Alter Chronos. Currently it doesn’t have too much practical use.
7. Blast Jinnius. This is definitely one of the most terrible god layers (bJ, sR, aB)
8. Mad Minoboros. The M2 from RLC was a very good attack layers (perhaps the best in dual layer system), but the two M2s I got from the Triple Booster Set (which contains Galaxy Zeus) seems to be weakened. I don’t this this M2 in RB can be as strong as the one from RLC.