Difference in ASR Arms

Which style would be considered better?

they are both good, hiems joints are lighter and have more travel, balljoints are sealed and may last longer in muddy conditions.

hiems joints have less friction

I like the hiems joints, I've had them on my banshee for 8 years and they are still perfect, I ride in all conditions, they have no boots to rip or grease just clean and spray with some spray silicone.
 
If you really need some questions answered about blaster a arms and ASR products call there number on e-bay and ask to talk to mike and he will guide you threw any decision makeing you will need. Great group of people at ASR from my dealings with them.