I use FMJs and plan on continuing to use them as I have been happy with them. I have never used the CE Maximas, but I'm sure they are a good arrow as well.
Both good arrows. The FMJ is going to be a little heavier so you'll gain some energy off of it. The Maximas are going to be more expensive and a little faster.
I have both and have hunted with both in the last couple of years. Like has been said it just depends on what you are looking for. I really have been impressed with the CX Aramids the last couple of years, but plan on trying the ACC Pro Hunters some next season. You can't go wrong with either one! Dan