sigma pi

Sigma Pi is a solid group of guys who throw decent parties. It won't be like SigmaNu's last night obviously, but it will be a good size. Shouldn't you go with what your sisters say anyways?

In my opinion, Sigma Pi gets a bad rep that they don't deserve. They're a solid middle tier fraternity and they don't really care what people think of them. They're not like ATO who tries way to hard and just annoys the heck out of everybody. You won't see parties at Sigma Pi like those at Theta Chi and SNu, but they're still fun. They're also not lady killers or anything but the guys are super sweet and genuine. Overall I think they deserve more respect than they get.

Sigma Pi is a upper middle fraternity in my book... they are moving up...

As others have said, they're more a "middle tier" fraternity, but screw tiers. People get far too caught up in them. Madeintyo is an artist with well known songs performing at a fraternity that has chill guys who aren't caught up in themselves like the bigger ones. There will be a good bit of people. I'm not sure if it's open or not though, so it depends. Obviously you and your sisters will get in since you're a sorority, but if it isn't completely open it won't be as big as it could be.