On a serious note , I preffer to play super seven to 6/49 .but when asked, people seem to feel this is a harder game and less predictable . yes the odds of winning are harder but I feel both games are hard to predicte, as you have noticed I am sure that everytime someone thinks they have it figured out a whole set of numbers come out the are totaly wacked .
Super 7 to me tends to follow one draw after another either numbers will come out 1 higher or 1 lower or lets say 10 comes out your sure to see 12 to follow closely. Some people have said this games has not been played long enough and there is no trend yet but in 6/49 they can see one. Maybe thats why you will see more people play that to this. Also the odds of winning are better.
As I am sure you have noticed there can be several winners at a time so proof that your chances are better
p.s. I also like playing super 7 better becaUSE THERE IS LESS CHANCE OF HAVING TO SHARE THE JACK POT