Faster, taller, yes. Their power levels should also be on the same level naturally but king and the fairies weren't giving it any trouble and albion adjusts to the opponents power. If we are talking about which albion showed more, its the fat one hands down.Actually this Albion was about twice as tall as the previous one. And it caused way more destruction, that didnt only include the fairy forest. This Albion was either superior or at least eaqual to the other one. It seems to be most likely much faster than the other one so I doubt Mel could have just sliced it up, not to mention that Albions seem to be able to grow body parts at will.
Its probably faster than the other one but that doesn't make it fast enough to stop Mel.
Which was why I said maybe. Its just a thought. We did see the power king was releasing but we've seen Mel do something similar with no such repercussions (although Mel is more durable). Its not a big deal anyway, it was just weird that he got injured by his power (whatever it was).I am not sure there is much of a debate about this. I mean, the chapter itself is pretty clear about the power king is releasing, we literally see the power king is releasing which is not a common occurrence in the manga (the only other time we have seen this is when mel used revenge counter). The nail thing probably has to do with the fact that he uses his hands to control chastiefol. With that in mind it is not that weird that he would have gotten hurt like that.