<p>Sounds like you’re pretty well informed and know about each school. I would definitely see what you think of each schools’ preview weekend to get a better feel for the school.</p>
<p>I’ll address some points that you brought up-
While the male/female ratio at Caltech definitely isn’t desirable, it’s not “plain unhealthy.” Most likely, it’s something you won’t notice for the most part after a little bit. </p>
<p>Being accepted means that the admissions committee feels that you are capable of doing the work. How much work it will take you it something that’s hard to tell before you actually start. The balance between work and play is something that is different in each house- you’ll see this some during pre-frosh weekend (although there are extensions for sets due during pre-frosh weekend, so people will spend more time playing).</p>
<p>Caltech has a lot of extracurricular activities. Although our sports teams may not be particularly good, there are a wide variety of other activities. If there isn’t a club for what you want, and there other people interested, it’s not too hard to get money from ASCIT. </p>
<p>The biggest difference is that at Caltech, everyone is interested in math and science. Although Yale has plenty of people in sciences, you’re probably not going to find the level and number of physics majors at Yale that you will at Caltech. Being around people who are interested in studying the same thing you are can make it easier and more enjoyable.</p>
<p>Good luck on your choice!</p>