Hey, congrats on your admission! I applied for the same programs.
I haven't heard from Imperial yet and I am also invited for interview for LBS. May I ask when you submitted your application to Imperial?
I think the best program for you would depend on your background (undergrad major, past experience) and what kind of skills you want to focus more on or what courses you want to take! (And it seems like you already kinda have the answer :P)