I went to Tokyo DisneySea right after I went to Tokyo Disneyland. I dearly wanted to see both, and I think the main positive of visiting places by yourself (as I did with Disneyland and Sanrio Puroland) is that you can just run around visiting the things you’re most interested in with complete disregard to everything else (in my case, anything with a 2 hour queue).
TAPE PARADE 