I'm in a 6x6 keeper league (normal 5x5 categories plus OBP) and I have a chance of acquiring either Dunn or Howard.  Who would you take for the next 2 years?

They're both 29, will turn 30 in november.

Howard is a career .276 / .374 / .578 hitter, but his SLG has dropped consistently each of the last 3 years.

Dunn is a career .250 / .384 / .523 hitter, and he's on pace to set career marks in each of the slash-line categories.

6x6 H2H league (standard 5x5 plus OBP and OBP-against for pitchers)

2 of my keepers are Webb and Aramis.  I'm debating on the 3rd...Holliday or C. Crawford?  There's a twist in that we can keep only keep players twice before they must be released back into the draft.  I've already kept Holliday once, so if I keep him again next year will be my last with him...Crawford was drafted last year so I can keep him twice.

FWIW, I have the 1st pick in the draft and am leaning toward J. Reyes (Wright is also available, but I have Aram at 3B).

Any and all help is appreciated...

For those interested in giving some advice, I have (yet another) fantasy baseball question...

12 team h2h league, 6x6 (standard 5x5 categories, plus OBP for batters and OBP-against for pitchers), 3 keepers allowed.

My first two will be Wright and Holliday, but I'm struggling to pick my 3rd.  V-Mart or B. Webb?