Since I've only had the Intense and not the BigRBang, I can't say definitively, but based on all the reviews and the comments here, I'd guess they are fairly similar overall. Length with lots of flip for the average bowler and the average drill. Both are medium oil balls.
Aside:
Many people tend to drill such balls with the pin over the bridge area in order to get more length, when they are already "length" balls. That drill accentuates their skid/flip tendencies and then people complain the ball is no good.
--------------------
"None are so blind as those who will not see."