My thought is, it really doesn't matter as long as you keep progressing in strength. I would pick something moderate; between 2 and 5 sets and between 5 and 12 reps. There will be times to work on extremes but I think just starting out it's best to be somewhere in the middle. If the reps are too low it will be harder to keep form. If the volume is too high you'll have nowhere to progress.
There are pre-made routines out there that have been proven to be successful with a big majority of lifter. I'd just stick with something proven and learn as you go along.