I like SSJ God, but i also liked ssj4. 4 was interestingly barbaric, but god makes him look leaner and younger, which is always a plus.
but the way the story is going in super, it doesn't have a whole lot over GT. my big problem with GT was how they spent the whole first arc struggling to defeat punkass villains who shouldn't have posed any kind of threat whatsoever. and after the pointlessness that was the fight against beerus and the huge amountf wasted time fighting frieza's minions again, it sort of seems like Super's got the same issues.
but i suppose that if they give Pan the abiity to become a super saiyan, super will beat GT in one regard.