Difference , better ?

Dear Java Certified Professionals,
Me and my friend wants to join oracle community by starting from associate level. i have a doubt regarding the versions SE 5/6 , SE7, SE 8 (correct me if i am wrong these are updated versions of the other) which one is popular and most used now days and recommended by working professionals?
Thanks in advance
Ali
Me and my friend wants to join oracle community by starting from associate level. i have a doubt regarding the versions SE 5/6 , SE7, SE 8 (correct me if i am wrong these are updated versions of the other) which one is popular and most used now days and recommended by working professionals?
Thanks in advance
Ali
Comments
SE 5/6 exam too simple and old.
SE 8 there is are almost no study guides available