@ the bold. This is actually wrong. Eye contact has to be mutual for genjutsu to work, regarding eyes.Teno, i am your senpai and believe me you have no shot of actually passing any bio test at the moment and i'm not trying to be mean. I'd suggest getting more experience and finishing your training before you take a Bijuu or Rinnegan test. By the way, you can only fully use a bijuu's abilities once you get to kage rank and the Rinnegan can be used in 2 different bios (6paths of pein and the nagato bios) but you need to be at least Sannin rank to apply and the rulles are currently on hold.
As for uchihas or hyugas, the thing is that Hyugas are vulnerable to dojutsu techniques (360º of vision makes them vulnerable to techniques that require eye contact) and have actually no Dojutsu Jutsu per say (jyuken is a Hyuga fightning style that uses their ability to see chakra and have precise chakra controll but isn't a dojutsu technique) asn in the Sharingan you gain acess to multiple unique jutsu. The Sharingan needs to be activated and upgraded through the tomoes but if you pass the given tests or tournaments or get permission you can gain the MS which in turn makes the Sharingan without a comparission between the Dojutsu. For someone starting i'd suggest the Byakugan as the passive and supplementary beneficts far surpass the Sharingan ones.