Depends on what/where you are fishing. My go-to setup for inshore and trolling for Spanish are 7' St. Croix Medium Heavy, fast action 10-16# spinning rods with Shimano Spheros 4000 reels. I use 15# braid on them. If I'm going for something larger, I pull out the trusty Shimano TLD 25's on 6' 40# rods with 30# mono spooled and 45' or so 30# flouro tipper.
Which St. Croix? I'm using a 6'6" medium-heavy, fast action St. Croix Tidemaster with an Abu Garcia Record with 30lb braid.