It's so simple. In fact, it's a no-brainer.
If you're already accepted into several schools, pick the one that is best in your field of study and go there. Plus you said you have a good chance of landing a job, goddamn, go to SJ State.
One of my engineering buddies that graduated from SJSU has a government job w/ Lockheed Martin and gets to travel around the country. One of my other SJSU homeboys is a civil engineer for some company and gets to travel around the world.
In these economic times, you have to go with the situation that will help you the most in the longrun. SJSU is pretty much sitting in your lap, take it.
And yeah, SJSU parties crack. My friends invited me to many a party, and it almost made me consider transfering...almost. Actually no it didn't, my school is the perfect situation for me.
Don't be too concerned with partying or else you're gonna be one of those 12th year seniors that wonders what in the fuck happened.