Dragonball
I didn't really get into this series, I kind of came in late in the game. I know all the stories of the series because I just simply researched it. I can say this was a good start for a very powerful character.
Dragonball Z
I came in during this time, I first saw this when I was 9. I woke up one day and my brother left the TV on.
I believe it was this episode that did it for me
(it's parody but you know the story)
Dragonball GT
I really didn't care for this series, super sayian 1 - 3 was good enough. But once they did this, I felt like they were getting desperate. I basically only watch the show to see the fights, anything as far as that was really lame
Dragonball Super
When they made super sayian blue, I think it was a nice cover up for super sayian 4 or like an apology for dragon gt. I rather like this form though and it really seem like dragon ball super is a good filler for dragonball gt it would be good to merge the two and stating the difference between the two.
I do believe the gt and super world could exist, if done carefully
They would have to publicly announced that super sayian blue and super sayian 4 are two different forms and operate in two different ways than all they have to do is remake the gt series