Help with Keepers??

[cdw44]

I'm in a 10 team keeper league which has unlimited keepers. You lose a pick for every player you keep, so if you kept 4 you wouldn't pick until the 5th round. The round you selected them doesn't matter. I usually like to keep less players to start fresh a little bit, as opposed to some owners who keep more. I'm stuck on who I should keep though:

I'm pretty sure I'm keeping these players:
Andre Johnson
Kurt Warner
Brandon Jacobs
Greg Jennings

But then it's between 2 players, Kevin Smith and Darren McFadden. I don't know if I should keep both, or one or the other. I feel like I want to keep McFadden cuz of the high pick I used on him last year, even though he was inconsistent last year. Smith was much more consistent once he became the starter and he might be taken by another owner if I don't keep him. What do u think? I welcome any advice on those 2, or any of my keepers..