I actually enjoyed FD5 quite a bit. Big improvement on the fourth film and closer in spirit to the first two. It was light years and away better than Apollo 18. THAT flick was a true shitshow. I've seen better flicks out of the Asylum.
I enjoyed the gymnist demise.....but not too much other than that. The bridge scene was pretty poorly shot, in my opinion, and the CGI was all over the joint.
Apollo 18 was what it was. I probably won't ever see it again, but I enjoyed it in the theater. It was gimmicky as fuck, but I thought it was a well made effort at the end of the day.