Fortress is awesome. What a cast! Fortress 2 is not so good...
My top 5 Stuart Gordon films;
5. Honey I Shrunk the Kids (i consider it one of his, and loved it as a kid)
4. Edmond
3. From Beyond
2. Fortress
1. Re-Animator (This is a given, right?!)
Honorable mentions to King of the Ants, Dolls, Stuck, Dagon and Castle Freak. I saw Castle Freak when I was far too young and it left an impact. Grimey film.