IIRC you're flying Southwest. Standing at the
Disney store looking at the Hyatt. The lanes all the way to the left are Clear+Pre, Then Pre, Reserve by Clear I'm pretty sure is what is between the escalators that go up to the Hyatt right in the middle, then it's Clear+ Standard and finally Standard all the way on the right.
If you get Pre, I'd go with Pre over Reserve every time. Don't take shoes off, don't take anything out of your bag and go through the metal detector rather than the
Nudie Scope. I've never spent more than 15 minutes in line at MCO with Pre.
Clear+ is what is $189 a year. Some people find value in it, I did not. You generally don't need ID and in some places you skip straight to the front of the security line with it.