I would not even rank Aldo in the top 5, I think it would be quite generous to have him in the top 10, to me his entire P4P status was based on the assumption that his ground game was equal to his striking witch when looking at a skilled based raking system like the P4P system, would have had him right up there due to the fact that if that was true he would be one of the most elite well rounded fighters on the planet.
But that was brought into serious question the other night, so he is an elite striker with good Take Down defense, I can think of another one JDS, in fact I would rate JDS as a better striker with better TDD, so by default where ever Aldo is in the P4P rankings it below JDS, which bring many others into the picture not least of all Cain Velasquez, I would drop him somewhere in the P4P listings down to around the likes of Thiago Silva and Thiago Alves because thats about hows skilled a fighter he probably is.
Just off the top of my head in no partiuar order I would rate all the following fighters above him
Jacare Souza (showed fantastic stand up in the Kennedy fight, can tell he has been training with Anderson Silva when you watch that fight, and for such a high level BJJ guy to have that kind of stand up, we could be looking at a future P4P king)
Seriously if I was to really look into it and start going through list of names instead of just the top of my head used to make this list, I think he would struggle to make my top 20 P4P.