Me!
Found some cheap tickets with early arrival and late departure so only $100 in airfare.
It was a fantastic day, running on adrenaline, but so much fun.
I debated taking a bus, using ride service, or car rental to get the parks and ended up with the car rental option.
I found a decent price on a rental car and am familiar with the non-tolled back roads to get to the park from MCO so that worked best to me.
The car also gave me a resting spot both for my carryon (with extra shirt/socks - useful for summer) and a place to take a midday break away from the crowds.
I was there by park open and left in time to get back to MCO for my flight home.
If you use the bus/rideshare consider using a locker at the front of the park to store your extra travel stuff.
Unless you have specific reasons for the trip (like riding a particular ride at each park) I would stick to just one park so you have time to enjoy it instead of wasting commuting time between parks.
Also plan nothing for the next day. You will likely be exhausted.