Wow congratulations ! Kasi namimili ka na lang ng school ngayon.

Well, for me... I was in the same position last 2008. I picked Ateneo. It was my dream school too. Although I kind of regretted it at one point, ngayon, I'm really glad I went to Ateneo kahit one year lang.
I studied and lived in the Ateneo (proud dormer !) and it's the best year ! It's a great campus... maaliwalas kasi andaming puno. The buildings are quite far apart though... so running from one class to another was kind of though considering the 10-minute break between classes. Lalo ka kapag magkabilang dulo yung magkasunod mong class.

Wala akong masyadong masasabi sa UP kasi di naman ako pumasok doon. Pero sabi nga nila, it's UP. Matataas standards, maganda ang turo, tapos hindi mahal ang tuition fee. Sa Ateneo, nagkaroon ako ng profs na UP graduates... sobrang nag-struggle ako sa subject nila ! I mean, I think they're tough because they're from UP, which I think is reasonable. Matatalinong teachers pa.

Try going to the Ateneo Open House, tignan mo kung magugustuhan mo yung lugar. Punta ka rin sa campus tour ng UP. Bago ka pumili ng school, tignan mo kung magugustuhan mo yung campus... kailangan gusto mo yung campus kasi doon ka for the next 4 to 5 years.