Wow dude. You are obsessed with boobs aren't you? Haha. Yea they all look good, but try switching the blogs up a unique theme. - Regards
For all those blogs you used one of the default blogger templates that makes things look a bit generic you should try to get some unique templates for the blogs.
Agreed a new theme is needed. Remember that it seems like a lot of college students will love your site, so make sure the theme is something that will appeal to that crowd.
I'm pretty sure you can add your own custom themes too. Other than your themes man it looks pretty good. - Regards
All three are little flat in design. I agree u can't use wordpress theme in blogger, but there are free blogger templates available for download.