They are all worth it, but then again they are all the same. So get the one or two that you like the IPs the most of and let that be your fix and then move on.
Wouldn't go that far. The details matter, even if at a higher level of looking at things they're almost exactly the same.
Isao, I suggest Lego Star Wars: The Complete Saga and Lego Batman 1+2 unreservedly. Lego Batman 1 is the best selling version for a reason. It's very well done, aside from the fucking water levels(FUCK THEM TO THE GRAVE). Lego Batman 2 was both the first one with dialogue and the first open world one. The flying controls are just as shit as Lego Marvel Superheroes, though.
I haven't played the Indiana Jones ones. Might be a better idea to grab the second given it redoes the first three movies into new levels, and includes a level editor(The fact that they didn't continue down that path pisses me off to this day).
The Harry Potter ones are awful for one very simple reason: controlling the wand is shit unless you have access to a Wiimote and are using the Wii version or a PC version and are using Keyboard/Mouse. They just don't fucking work on a controller, period.
Lego Pirates of the Caribbean is decent, but not spectacular. It's also one of the last two to have no dialogue, so it's noteworthy for that.
Lego LOTR sucked. It follows the movie too closely and has little place for humor. The level designs are weak, and it's far too focused on the item mechanic introduced in Lego Pirates. I have no idea if Lego The Hobbit is any better in those regards, but I doubt it very seriously.
The Lego Movie Game(Yes, that's the name) I don't really know anything about other than playing it without having seen the movie will spoil the FUCK out of it due to following the movie fairly closely and
including scenes of it as cutscenes.
Lego Star Wars 3 is okay, but relies too much on its battlefield gimmick for the non-main level portions. It becomes a sort of grinding at that point.
Don't know anything about Lego Jurassic World other than it includes levels based off of the first three movies as well as Jurassic World.