It is likely that you will get a better financial aid package at Pomona if you were to get into both schools. If I remember correctly, a larger proportion of Pomona international students are on financial aid than Haverford’s international students. Students from different countries will have different chances of getting financial aid from colleges. If you come from a wealthy country, you will find it more difficult to get financial aid as there will be many similarly outstanding students who can afford to pay the full tuition. Pomona is getting very popular among international students (even those who can pay full) so it will be extremely competitive if you come from a wealthy country