OK...someone has a gun to your head and says that you have to pick 1 rod and reel from your current arsenal to use all year exclusively for all trips. Not including tuna/offshore. If you also fish freshwater then you get to pick one for that too.
Describe your picks...
mine:
Salt: A 7' MH St Croix spinner rated for 15-20 lb line paired with a Shimano Spheros 4000 spooled with 20lb PP. Caught tons of stripers, blues and fluke with it. Enough backbone for chunking/livelining and can cast lures and jig too. I think it could handle bottom fishing up to 8oz.
Fresh: 6'6" Falcon spinner rated for 6-12lb line with a Daiwa SS spooled with 8lb mono. The rod is fairly new but I like it a lot.