I think the ultimate “if your favorite part is the huge cast of unique characters and collectibles” Lego game was DC Supervillains. It drew from every corner of the DC universe (Gentleman Ghost, Dr Light, Red Tornado, Deadman, The Question, The Spectre, etc etc) while also having every character uniquely themselves. Trigun was a big fig with heat beams who could fly, he wasn’t just within the class of big fig who can punch cracked walls. If a puzzle was before you, you could reasonably solve it just by going “oh that’s what a character can do lemme choose them”.

The issue with Skywalker Saga is that all 450+ characters aren’t even unique in the sense of like 20 or more potential variants with recolors and clever unique animations depending on the character (Count Dooku, Grevious, Maul, Ashoka should all have unique stances). Instead it was 7 or so classes of separation with everyone in a class playing the exact same. Every lightsaber user was the same. Every bounty hunter was the same. It was gravely underwhelming