Out of the first three seasons of the entire anime, this one to me is the best, and the only one where Goku receives significant screen time in almost every episode. The following contents are of the uncut version:

Violence/Peril: 6.28. This is the season where

Also, during the very extended fight with Frieza, plenty of little flows of blood are shown being coughed out, and whenever Krillan and Vegeta had major holes in their upper bodies. Frieza stabs Krillan with his horn in order to pierce through his body like that, but Krillan fulfills Vegeta's request to mortally wound him so he could become stronger upon healing. Also, the four Ginyu Force members fall into the ogre's pool of blood in the otherworld. Besides this, the violence is of martial arts, energy beams that could easily vaporize a normal human, and characters being thrown thousands of yards with mere punches, kicks, or even tail swats.

Nudity/Sexual: 3.87. The only real significant nudity was a brief sight of an dead alien's rear end. As for sexual content, Master Roshi is once again being perverted with women like Chi Chi on Earth.

Theological Themes: 1.67. The ogres have torsos reading "HELL" backwards in the otherworld. That is the only questionable theological area of the season (which is very brief), though some may be disturbed by the Dragon Balls wishing for the resurrection of dozens of Nameks as well as six main characters, along with the titles Goku gave himself as a Super Saiyen.

Other Questionable Themes: 2.84. Dr. Briefs is commonly having a cigarette in his mouth that does not get smoked. Language is more intense and frequent at the beginning, but dies down more towards the end. There is a single use of "my g**" by Vegeta and perhaps the word b*****d, but the words d*** and h*** are used very infrequently.