I think if both dogs aren't really what you're looking for you should keep looking.
First dog sounds like it needs a job - lots of time - I wouldn't recommend that dog for you because it sounds like a ton of work and as a student, that work is hard to do on top of everything else. Second dog could be a great dog for just walking and sitting around, being a pet. Much better for your situation. But you will figure out what's best for you.