Well, paper beats rock

A college degree doesn't have the chance to end badly and take half your shit, so that's a plus.

A degree is for life, none of those marriages will last past 5 years.

A college degree gets you way further than a marriage

Statistically speaking, only one of those three will last... maybe two if you want to be generous and are looking at the "conservative" estimates.

Bottom line, out out of those four, the three engagements... the likelihood of there being at least one divorce within ten years is high enough to bet money on.
That degree holder there? If/when she marries, she has a 78% chance that marriage will last at least twenty years.

But they might all have degrees, we don't know