Yes I have watched all the sequels and the spin offs of AVP. In my opinion they haven't been on par with the original.
Yeah, Maria Conchita Alonso and Ruben Blades appeared in Predator 2. I found Predators (2010) entertaining because at least they tried to capture some of the spirit of the first one. Do you know a prequel movie is coming out soon? it's called Prey, its trailer looks interesting to me.
Btw there is a continuation to predators from 2019 or something like that, and it totally sucks xD and im a big fan of predator, to the point i loved the predator x alien, but still, i hated the newst one, i just hope prey brings back the feeling of being observed by a invisible killing machine :(