According to what we have seen and mangafact, not your speculation.
Kabuto, Naruto, Madara, and Hashirama are the top tier sagemode users
Jiraya is mid tier
Minato is low tier
All Minato has shown is to use one single senjutsu rasnegan, Kakashi was about to comment on it saying that his sagemode wasn't that reliable, but Minato beat him to it. He also stated it takes him a while to enter it, and he has never used it IN BATTLE. So he has no special techs other than Rasengan, whereas, Naruto, Jiraya, and Kabuto have displayed multiple sage abilities.
Also, Yea, Jiraya needs ma & pa, but together, they make a powerful sagemode, far more powerful than Minato's