Hrm... we don't know much about their force defense... even though Anakin took out one pretty easy, 3 on one odds, plus a fourth for one of 'em, are a good deal harder...
If the 10 can use their collective might to defend against force attacks and get into melee, they have a chance, but since the sith are strategizing, they will realize it's best to reduce numbers. And they have force power to spare. Also, fighting close together, so the Drallig's can't do something like have 8 all rush one guy.
Even taking down one Drallig at range means no-one gets quad teamed, and taking down two means someone only has to deal with two-on-one, which any of them can handle in melee.
So, trio wins.