I think Bolden is the better free ranging safety while Gurvan is the better lumber layer and enforcer in the box. Bubba looks more likely to jump a route for a pick while Gurvan would rather hit a receiver to break a completion up.
@Liberty City El this thread has me watching the FSU/UM game now out of quarantine boredom. Bolden had the one pick and dropped another, but Hall made a lot more plays.