Since Boston College likely does not have a CS grad program you may be better off with UF which does (around #48 of over 100 ranked CS grad programs by USN&WR). Check on the requirements and available courses for the CS major. Also consider the strength of the math department as many math courses are cross listed with and/or count towards a CS degree. You want a CS program that allows for variety and depth. There is s o much more to CS than just programming.
Florida and Boston have radically different climates. Plus, the campus culture will be very different. Consider the whole experience.