For B&P I'll use my South Americans (Hovitos). There's a lot to be said for simplicity and the way I set them up, they'll be easy for my old brain to manage in a tournament situation. I tend to put tournament X-Wing lists together in a similar fashion. The less I have to remember, the better off I am. Either way, it should be fun!
The SFB scenario will be one I came up with a few years ago that we played in December of 2015. It's low-powered and doesn't require a lot of game experience so casual players won't have too much difficulty joining in.
We may also play Frostgrave on Saturday morning if we can find a spot. If that doesn't pan out, it'll be Battletech for me!