My city is offering three different versions - 3D being one I was going to go to the IMAX version What made you choose 3D? And do you think it was better?

Forgot to add, I didn't see the IMAX version so I can't comment on that. The theater I went to didn't offer premium seating (recliners) for 3D. So you may want to check if that's an option should you consider it.

First thing I checked! Love those cushy recliners

I personally find 3D to be immersive. I still buy physical media if presented with the option of 4K HDR or 3D, I usually choose the latter. Jurassic Park is an example of 3D conversion done really well. The same folks worked on Jaws. Whichever you choose, I hope you enjoy it (I'm sure you will).

I've already seen it at least a hundred times, but never on the big screen - so I want to have the best possible experience

The original 3D was so so bad