The Super Tuscan from RJS and the Rosso Fortissimo from CC would be the most similar. These are Super Tuscan blends that follow the rules of any Super Tuscan (there are no rules!). Both are nice bold reds, with definite Sangiovese character to them. Since it's a kit, we'll never know the blend varietals.
RJS has a wine in the Cellar Classic series that was called Rosso Grande, which is a very big red. This one was designed to be over the top. Big Jammy Fruit, big oak, big tannin, big everything. The only way they could follow it up, was to add skins and that's just what they did in the Winery Series with Rosso Grande Excellente. I would not call this a super tuscan, but rather a decadent Italian table wine. Big black fruit, heavy smokey oak, and chewy tannins. No finesse, no subtlety whatsoever.
I've had all 3 and all 3 are great. The RJS Super Tuscan is the one I'd choose. This is the most reached for wine when friends come over.