Note: neither the NEC nor UL consider loadcenters to be different from any other panelboard. the difference in the panels is strictly a tradition not a standard. Think 4x4 pickup versus a 1/2 ton. It comes down to personal preference and available options only.
Wouldn't the short circuit ratings be higher on a panelboard? Most of the ones I run into in cinema work are. A lot are also "Series Rated" for fault current management.
I wouldn't want a resi loadcenter in one site I work at. The theatre is literally right on top of a network distribution transformer! A short in the projector's maint. receptacle took out the 225 amp subpanel breaker with a nice loud bang! (It tripped, didn't explode.) That same fault would've probably rearranged the buss bars on a loadcenter!
