Really depends on where you plan to fish. With these type of boats, I'd say to pull off and fish from bank. Can't stand up and fish, and you nail a slab and hold on for a ride (biggest I ever caught on a "pontoon boat" was a 50# king. Thought I was on a waterski. SHEESH. 10 to 15 sounds right if you really want to anchor.

Now, for rod holders. Use whatever style you want, fishon, scotty and the likes. But DON'T buy the one that straps around your tube. Why waste the money on something that can hang up? Plus, they're an eyesore. Cabela's has an aluminum rod holder that clamps onto your frame. Nice thing is, it will hold all different types of rod holders on the mount. I have fishon rodholders mounted to the clamp. Only about $13, and you can pull it up and remount it anywhere there's frame exposed.