If you got a cumara I think medium would be perfect. I really like the versatility of the 7'2" medium action rod. It seems closer to most companies medium heavy. Their medium heavy rods are pretty stout and I wouldn't dip much below a 3/8oz rig with that rod.
I have handled a few St. Croix rods in the store and didn't care for them. These were the mojo and rage rods. I havent handled any avids or legend rods yet. It was more a style and rod weight thing not a performance thing. Sorry I can't compare them to the dobyns extremes. Maybe another person on here can offer that comparison?
As far as Powell goes I have an 6'9" endurance rod I used for small square bills and jerkbaits. I like the rod but wish it had a longer handle. As to weather either is better than a cumara or recon it may boil down to personal preference and whether or not you want cork or foam handles. They are all good rods.
If it was me I would look at 7 foot to 7'3" rod, something in a 3 power or so, and medium to medium heavy.
I am not sure what weight of lures you plan on using nor the amount of cover you will be fishing. I have used my 3 power dobyns for shakey heads, flick shakes, senkos, flukes, t-rigs and jigs up to 3/8 with no trouble. I have curado 50e on the 7 footer and a Daiwa alphas 103 Ito (similar to the sol) on the 7'3". I prefer the curado slightly although the custom alpha is better looking on there after a new paint job and cf handle.
If you get the recon get the 714 or 744. They will be the closest to the other rods I mentioned. This will also be your least expensive unless you choose to buy another Powell or another brand of rod. Take advantage of the TW and thehookuptackle for the labor day sale. At 15-20% off and free shipping you can come out good!
They are all sensitive, cool looking, and lifetime warranty rods. You really can't go wrong with any of them.