I have the 7' St Croix medium action it is ideal for plastics and light jigs. It cast great and plenty of leverage to move big fish. If you want to pitch into cover and for throwing large jigs you probaly are better off with the heavier action rod. For the money the rods you're looking at are a great value. If it's possible try the reel your planning on using on the rod so you can feel the weight and balance. Thiswould make the decision easier.
Good luck and tight lines!!!