Solid Works vs. Inventor

[Siri]

Our team uses Inventor, though mostly out of inertia/experience. I started with it as a student on the team (though admittedly not very rigorously), but now use SolidWorks in college almost exclusively. I have to say SolidWorks is a lot more intuitive for me. They are pretty similar, and someone competent in SW won't get lost in Inventor (if they're patient). The learning curve can be pretty painful sometimes, though, especially during build season. SW is also much more ubiquitous in both industry and academia, and employers tend to prefer proficiency in it.
File transfer can be iffy depending on exactly what you're doing as well, so watch out for that. We're trying to get in the habit of sending our manufacturing sponsors a pdf/jpg along with the CAD format they request, in order to avoid mistranslations.

Given your situation and the considerations you listed, I'd recommend sticking with SW. Personally, I can't see much reason to switch from SW to Inventor (the other way is more compelling), but if you identified some possible advantages I'd be happy to see if I can provide further insight (though I can't guarantee the quality).