Are unpaid internships really that high up on the ECs tier list?

I know that the chancing stimulator has unpaid internships for non profits and medium sized businesses at 2A, but I have heard many online communities and youtubers say that unpaid internships don't mean much to college AOs. What are your opinions on it? To those who had unpaid internships on their applications, do you think it boosted your application? Could it be the highlight of an application?

I've planned for 4-5 unpaid internships on my resume. I'm currently involved in one with a small business. Since they all last only a couple weeks (ranging from 2-12), have an age eligibility and are only available in the summer, I am planning 3-4 for next summer. 3 of them are with large scale non profits (1 of them is selective) and one of them is a research internship at a clinic. My other ECs are also club involvements and short term volunteer works.

I'm definitely continuing the one I'm doing currently and applying to the research internship, but are the others worth it? Would I be better off doing something that could be more prestigious? I know that I would truly enjoy those programs and be very involved as I work actively and closely working with professionals, but I really need ECs to boost my application too next summer. I'm very conflicted.