I have both cards. My husband has a SW card too (different account, like others have said, get separate cards to get more free points.) I was happy flying SW out of PHL and then EWR to MCO. Now SW has pulled nonstop flights to MCO from Newark, and their PHL flights are usually more expensive. I am sad about this, because I love SW! not just the 2 free bags, but the ability to change flights without paying a fee, and to get credits each time the fare drops.
JetBlue is my new go to for trips to MCO from Newark. You DO get a free bag (1) for each person with the credit card with the Plus card. The flights on points seem to take more points, vs SW. (At least to me it seems that way). I love them, but in January had a bad experience with a cancelled Sunday return flight, they offered a Tuesday flight to JFK as only alternate option. No other airlines cancelled flights to EWR, but the storm was in Boston, one of their Hubs and it was a chain reaction mess, but still frustrating. Weather so whatever.
Now we got credits on JetBlue from that, and they handle credits very differently vs. SW. SW ties them to the person's name that they came from, but JB allows anyone to use them. Interesting. Also you need to book them by a certain date, not use them by a certain date like SW.