My other keepers are: Utley, Kemp, Adam Jones, Longoria, Brett Anderson, Tommy Hanson. These are set in stone due to rules of the league I'll forego going into, so no, I can't keep Kershaw instead of Brett Anderson, etc...
Votto and BJ are the highest on my cheat sheet, but is the value from either Kershaw/Feliz enough to outweigh either of these?
I would keep Votto and BJ Upton. I think Upton is a great value at 18.
You are already keeping two young pitchers. I usually prefer hitting over pitching in keepers as well, so I would be even more ok with not keeping Kershaw even though he has a ton of potential.
I'll take Kershaw and Votto. Upton is great value at 18 but so is Kershaw at 15. I like Kershaw chances of being taken a big step forward more than I would take Upton. Usually I would go hitting but Kershaw is to good of a talent to let him go back into the draft.
"In the beginning the Universe was created. This has made a lot of people very angry and has been widely regarded as a bad move."- Douglas Adams
Kershaw and Votto as both are valuable right now and guaranteed rising stock while Upton is a bit of a mysetry and Feliz's role is up in the air for the immediate future.