Pitch black : the first one, and the best one. Dark, scary, thrilling. I enjoyed it a lot, it made me think of Screamers. I give it 4 barks out of 5
Dark Fury : the animated movie that bridges the two first movies, it suffers from bad character design while having a not too bad plot and general ideas (the living statues, quite scary). 3 barks out of 5
Chronicles of Riddick : not as good as the first one, suffers of too much action and little plot. Still, not bad to watch. 3,5 barks out of 5
Riddick : better than the 2nd one, it returns to the basics of the first one. Starbuck doesn't do as much as I hoped she would do, too centered on two characters. 3,75 barks.
Tengen Toppa Gurren Lagann : https://en.wikipedia.org/wiki/Gurren_Lagann this anime have both really interesting things and things I dislike. I like the characters, the plot, I'm torn a bit on the graphic design, and I dislike a bit the silly side because at times they put too much of it from my point of view. Still it's not a bad show and I give it a 3 barks out of 5.