First off, let me say that I am a huge Remington fan and it's all I shoot for the most part.
With that said, I would go with the Supernova. If it was an older Remington, i would say go for it. The QC for Remington has been awful in recent years and the express's have had alot of issues. If you can get your hands on a Wingmaster, i would get one in a heartbeat. I have one made in '72 and it is the smoothest shotgun i have ever handled. Good luck!