While it never hurts to play with different devices and can get you familiarity with the some of the generic tools like adb, and some of the terminology, the methods used for different manufacturers is different so the actual exploit tools and steps will be very different.

If you have a Droid, and are still on 4.2 read the slapmymoto thread very carefully and follow those for the Maxx. They wont work for the G2 nor will G2 methods work on the Droid.