I've seen only the first one. But need to catch up on the saw series and also Paranormal Activity. Never saw even one PA film. The PA series has received mixed reviews. Kind of reminds me of Blair Witch, half of the people love it and the other half hate it.
The only ones I really like are one and three, though the second one isn't bad. Once you get past the third film, the series really takes a ridiculous turn. The final one was pretty silly, it was good for some mindless gore, but not much else.
Did anyone else marathon the series already or will this month at some point? I spent all day yesterday watching them all in a row, had fun. Always an annual October tradition for me to set a day aside to view them all.
I've had a marathon to watch them all but that was sometime last year when I was sick. Although I was laying on the couch feeling like I was going to croak I enjoyed watching them all back to back. If I had the time I would love to watch them all again. I know a lot of people didn't like the seventh, but I liked it thanks to Sean Patrick Flanery being in it. He just made it that much more enjoyable for me.