There are seven lines, if you count the three el Capitan's, which include the Maduro, el Natural and Peg Leg ... and they are introducing number eight for 2003. the only one you left out, was the Texas Star!
The differences are like night and day, from mild all the way to full bodied. The reasons for this, are the different blends of Dominican, Nicaraguan, Connecticut, Sumatra, Costa Rican and Equadorian tobacco used ...