snowman, first of all you don't need to apologize for novels, it helps the people who want to help you!
Secondly, I would recommend the following balls because of thier versatility:
Original Inferno- one can build any arsenal around this classic.
Monster Bruiser- Most "medium" ball I have ever heard of. Can go from med/dry-medium/heavy with surface prep alone.
I would also recommend the BVP Punisher for less than mediums, but not for dry lanes. For dry, stay with the Dry/R.
This is only my opinion, others may vary.
Also, for the 50ft soaked pattern, I'd say Ultimate Inferno. This ball can also be easily adjusted using surface prep. It'll cut through that oil, then when it hits that dry- bam!
Basically, anything you choose will be money on something.
Good luck!
--------------------
Ben
VIVA LA NACION!!!