Is Kilz or Kilz 2 better?
Herein, what is better than kilz?
Bleed-through, odor, and consistency When applied to two different walls in the same space, two coats each, Original Kilz Primer allowed more bleed-through, while Zinsser provided better coverage. However, Kilz Premium is a high-hiding formula, with a whiter, thicker consistency for superb opacity.
In this manner, is kilz better than primer?
With only a small amount of color showing through, Kilz primer is the closest to providing one-coat coverage. Although it does not affect performance, you'll notice that this primer appears more off-white than competitors products. Superior coverage combined with a cheaper price make Kilz the obvious winner.
Generally, one to two coats of primer will suffice for painting interior walls, but how many you'll need depends on the wall material, the paint color, and the type of primer used.