HIT just a matter of personal preference, your personal makeup as to whether you can take the intensity required to compress all the work into one gruelling set. HIT done right, with a training partner, takes exhaustion to the extreme, so the fundamental question's whether you want and are willing to do this. I don't find it appealing, plus I can get into a groove on the last couple of sets using moderate sets than isn't possible with HIT, while still using a lot of intensity.
Rest-pause is a fave, I alternate that with partials, or they can be combined together-partials using rest-pause. Both are gruelling but excellent for getting through barriers. The only downside is that using either one every workout, especially on most sets, could burn you out.
It's individual though; I think it's better to use them on only some sets.
