low reps vs high reps

[jhbulldog13]

When trying to put on mass is it better to lift heavier weight and low reps than to lift lighter weight and higher reps?

 

[hardrock]

I preferr the 8-12 rep range. I used to like 5 rep sets, but have gotten hurt too much.

 

[wartime100]

I switch it up. one week I will go real heavy,the next I'll concentrate on form and higher reps.