Conclusion:
Both games have their good and bad points, it's just not the same game..

I think jazz 1 was much better for it's time, by then it was a very underrated game. At some points jazz 1 even has more graphical detail than jazz 2 in my opinion..

But still I like Jazz 2 better, because the game has just more options (I don't care if some of the weapons are useless)