Hey there, I applied to some of your schools this past application cycle. I'll use my stats for you to compare with, and I'll also talk a bit about my experiences with the ones you are applying to.
University: Northern Illinois University
Major: Biological Sciences
Overall GPA: 3.72 from PTCAS
Pre-Req GPA: 3.70-3.75 depending on the school.
GRE: V-149 / Q-146 / AW - 4.5
Extra-Curric: Employment with Kohl's (2,200+ hours), Seasonal employment at Meijer (280 hours), BLS Provider Certification, Adult and Pediatric First Aid / CPR / AED Certification. I also have 400-500+ hours working as a rehabilitation aide, but it wanted me to include experiences non-pt related here.
Volunteer: N/A
Hours: 600+ hours from both shadowing and working at an outpatient orthopedic setting (400-500+ are from working, 170 are from shadowing), 17 hours at a pediatric setting, 25 hours at an aquatic therapy setting, 17 hours at a private outpatient orthopedic setting, and 18 hours at a skilled nursing facility.
LORs: 1 from a PT who I've shadowed and currently work with, 1 from a PT who is also the assistant facility manager where I work, and 1 from a professor at NIU who is the anatomy lab director.
Acceptances: Carroll University
Applied: NIU, Midwestern-Downers Grove, Rosalind Franklin, UIC, and Carroll University (no interview required for these last two)
Waitlist: NIU (low on ranked waitlist and class was full)
Rejections: UIC, Midwestern-Downers Grove, Rosalind Franklin
Interviews: Midwestern-Downers Grove, NIU, and Rosalind Franklin
While my GPA's were fairly good, there were other aspects of my application that likely resulted in rejections. For example, when I applied to Midwestern they stated that they look for extracurriculars and volunteering in their admission requirements. I didn't have those, so that may have been a reason why I was rejected. However, my GRE score is below average overall and that may have been another reason for rejection. Likewise with Rosalind, my GPA's are much greater than their averages but the GRE score average is much higher than other schools (155ish). I asked them the reasons for rejection and they told me that they recommend me to look into research, retake the GRE, and gain experiences in underserved populations. One of the major differences compared to other schools is that Rosalind does MMI interviews rather than the typical one most schools do. The interview with Midwestern was very relaxed and felt like a conversation, which was also the first one I received. I personally didn't apply to Northwestern mainly due to the high cost, so I can't speak for that school. Overall, these are the reasons why I believe a school rejected me, but there can be other factors (interview, personal statement, etc.) Based on my experiences, I personally wish I applied to additional schools that are in Illinois or a few more out of state ones since I applied to ones that were mainly within a commuting distance for me.
My personal top choice was NIU, but unfortunately I was waitlisted with them. The last school I heard back from was Carroll University and that ended up being an acceptance. I think your GRE is fine and your GPA's are considered competitive. I can't speak about how a school decides to admit/waitlist/reject an applicant, but each one likely weighs aspects of an application differently. One may value GPA more, while another looks at your experiences more or about the same. In the end, make sure that every aspect of your application is the best you can make of it. Your personal statement is something you should definitely have a few qualified individuals look at and give feedback on. Practice with individuals who are able to give you proper feedback on interview performance as well, since that is definitely important.
Let me know if you have other questions, and I'll do my best to answer them with these schools. Definitely also get feedback from other students on here as well, since they can include other additional information that is valuable or better than mine and it's always a good idea to learn from another's perspective. Good luck!