Might try the search feature on this one brother. There are plenty of threads on this one. I bought the AFE Stage II because I liked the way it looked the best. Does one perform better than the other on a dyno? Mostly likely not. Just go with one that's in your budget that you like the look of.
most forum members like the mopar and afe stage II the best. i have the volant and i'm installing it over thanksgiving week. i chose the volant because i thought it looked way better than all the other ones, and it has the down tube to get actual "cold" air unlike the other intakes.
here are some links, there is tons of material on CAI's, it comes down to personal preference, I have had two Volant CAI's on my 5,7 charger and one on my current SRT8 300c, I just really like the design.