So what is better?

4-5 sets, 5-8 reps per set at a heavy weight

or

pyramiding, starting at the same heavy weight, increasing the weight with each set doing a set of 3 with 12/5-8/1-4 reps respectively

I am never going to get huge cause I don't have the dedication but I need to get a bit bigger / toned. I also only do the circuit weights / cable machines because I am too nervous to do free weights on my own