1. Topwater baitcasting rig
2. A Carolina rig, maybe 2
3. A Texas Rig, maybe 2
4. A moving (crankbait, swimbait) rig

From a kayak, anything longer than 7'4" becomes cumbersome (difficult to store on deck/etc)

Positioning and dealing with wind are a challenge--Medium spinning rods for lighter lures helps a lot by increasing your margin of error

From a kayak, you lose a lot of leverage (when you set the hook the kayak moves toward the fish and the fish moves toward you)--after years of trial and error, I've settled on braid to Pline CXX for almost all applications except frogs and flipping thick cover--straight braid

Some brands medium is more like medium heavy and some brands medium heavy is more like a medium.
With moving baits I'd error on the softer, more parabolic side and with slow moving plastics I'd go on the stronger/stiffer more backbone side.


Two 7ft Medium spinning rods/reels (one for moving baits medium/moderate action--jerkbaits, small topwaters, small cranks and one for plastics fast action--weightless senkos, split shot, light shaky head/ned rig, drop shot)
20lb braid to 12lb Pline CXX

Two 7ft Medium heavy baitcasting rods/reels (one medium-fast action for moving baits--spinner baits, larger cranks, larger topwaters and one for plastics fast action--lighter t rig and crig, light jigs, heavier shaky head)
30-50lb braid to 17lb Pline CXX

One 7ft Hvy--pitching, frogs, heavier jigs
65lb braid to 20lb Pline CXX or straight braid.