<p>What's better and why? I'm leaning towards having only another person living with me. Both situations would be with people I don't know.</p>
<p>I’d say go for the 4br. It’ll probably be cheaper (not least because you can split utility costs 4 ways instead of 2, and a lot of them are nonlinear).</p>
<p>And what if you don’t get on with your roommate? 2br=extreme awkwardness. 4br=not so bad.</p>
<p>I’d go with the 2 bedroom apartment unless the 4 bedroom apartment is significantly cheaper.</p>