Congrats on your admits!
Both are fantastic programs. Yes, Kellogg is very open for PT students attending their recruiting events and that's a plus. I believe Booth has followed suit now as well and makes their FT recruiting events open to the PT students though last year has been very FT-focused since the pandemic hit during a very sensitive recruiting time for 1st year and 2nd year students. At the same time, virtual events and options to actually recruit are more virtual and more inclusive of PT Students. For example in 2019, to recruit for consulting and many tech roles, you had to do a number of coffee chats with different recruiters from the same company and most of them would be during the week in campus, something that most PT students would not be able to pull off to take advantage of.
I feel if you want finance, you go to Booth. It is attracting most of the Finance folks in terms of PT and FT. There are many Finance alums and that's the stake they put into the ground. I hear you about the Kellogg labs and that's an awesome feature but it seems you have to apply and get approved for it "Enrollment in the course is by application only." and I can see how the options may differ. I also feel the main value of an internship is usually being able to put that name on your resume (besides being recruited for the job and getting a return offer) and I don't feel that would be the case for either in the Kellogg lab - you won't get a return offer and I can't see how you can put it on the resume and have it check out since you technically never worked for the company and it would not pass a background check, which is likely to happen in a Financial institution.
In addition, with Booth being more finance focused, I think you would benefit from the speaker series, potential opportunities organized by the various finance clubs, and recruiting trips to New York and such (though recruiting trips may be hard to join as they tend to be organized by diff organizations/groups and sometimes are limited to FT students only).
We are here evaluating future returns based on past performance and you know how that works

but looking at statistics and how things work out for an average applicant, it seems there are more opportunities for you at Booth actually. At the same time, there is that depends on chance and luck in business school. You may meet a certain alum or run into someone who is in Marketing and Kellogg alum but they are looking for a finance person. Chaos and chance create additional opportunities in business school.
P.S. Word of caution/advice: you will be doing work + school. Most people either do work or school. You will often find yourself swamped at work or in classes. It will be a never-ending torrent of assignments, reports, powerpoints. You will look forward to a long holiday weekend to get sleep and recover and dig yourself out. That is not a very recruiting-friendly environment. I found it hard to focus on recruiting while working and going to school (I took on a PT job to make some $$ during business school but had to quit as it was preventing me from recruiting effectively). I would say that it will be a challenge to recruit during PT not only because it is not recruiting-focused but more so in the fact that you will have a lot less time to focus on it.