Particularly I was thinking of the X-Plus Belial vs. the Banpresto Belial. Both are similar sizes, but way different in price. X-Plus Belial is around $200 while the Banpresto Belial is around like $40. The X-Plus obviously has more detail. I figure I probably only need 1 big vinyl Belial figure. Even though the Banpresto is just another $40, I'd rather not spend it if it's not worth it. I'm just looking for the single coolest representation of the character. Sadly neither companies made a Kaiser Belial with the cape :P
Here's a comparison for people who aren't familiar with these:
X-Plus Belial:
Banpresto Kaiser Belial:
Not the best pictures, but you get the point.


