Sort of random and pointless question...
The elite one is slightly bigger but other wise they are identical in terms of looks.
The bigger one last longer and is supposedly stronger.
Yumiko Emi Ishida 80 Ele, Hikari Kyoko Ishida 80 Guard TC-NA. Active RPer of NA megaserver.
As Piratoz says, they’re slightly different sizes, with the elite being a bit bigger (or if you prefer, the utility being a bit smaller ;p ).
The elite ones also each have an extra skill compared to their utility counterparts - this means they have an extra animation they’ll do to activate it.
Yumiko: they’re not visual differences, though - the elite versions do likely have a lot more health and toughness and do deal some more damage (exact values not known, but people have made some reasonable estimates from in-game testing and added them to the wiki), but neither of these things directly shows up on their models.