Some alternative perspectives …
Here’s the strategy I used successfully in December. I arrived at IOA about 15 mins before RD. The lines looked huge, but moved quickly once they opened.
I then headed to VC. Everyone goes to Hagrid. So unless you are at the front of that pack, you still have a big wait on your hands, assuming the ride is actually running — apparently it is not always ready to go first thing.
VC was a walk-on. I then went to FJ, which was a walk-on. I then headed to 3B for breakfast, which had a bit of a line: maybe 15 mins?
Having analysed the data, I waited until around noon for Hagrid. There is a noticeable drop in wait times at lunchtime and the wait was posted as 70 mins, which was the lowest I saw it that day.
I don’t understand why people would arrive at RD 45 mins early. You have the misery of getting up really early, and the wait is super-boring. There’s nothing to see or do and you’re just standing there.
I (much?) prefer Aventura over CB. I’ve stayed at CB twice. The first time I paid extra for a VB view room. The view was disappointing because of the curious architecture of the towers. And the room was a really long way from the lobby. It was nice to be able to walk to the parks, but it took about 10 mins just to leave CB itself.
The second time I had a regular room. It had porthole-style windows. I found it featureless and gloomy.
I’ve stayed at Aventura once (so far, ahem). I paid extra for a Skyline view and had a fantastic view of … VB. Because of the design of the hotel, no room is far from the lobby, though you do have to use elevators. The hotel is clean and modern, and a shorter walk to the parks. You can also walk to VB.
CB and Aventura are usually the same price. I rebooked my June hotel last night having spotted some AP rates. I chose Aventura over CB and it wasn’t a close call.
During my ill-fated June trip last year, I paid over $300 for a one day EP for just myself. It was very poor value. I barely took advantage of it.
It very much depends on your plans. Some things don’t need EP, e.g. the Bourne Stuntacular (you’re actually better off using the standby line — your wait is the same and you’re more likely to end up in the middle of the theatre). Some things desperately need it if you get the timing wrong, for example HE — even with EP that can be a long wait.
Maybe buy one day’s worth. But maybe wait until you’re actually there. Try Day 1 without it and see how you get on.