I just had a draft and had the #1 overall, and went with HRam. That being said..
I could certainly see someone going with Pujols. His high BA is a huge bonus in that you can target a lower BA player later and still come out on top (Dan Uggla, Young, Dunn etc). Pujols could easily top 40 HRs 120 RBI 110 R while throwing in a handful of steals.
All that being said, hard not to go with HRam. His BA certainly won't hurt you, likely in the .310 range. Great power speed combo, and an enormous amount of runs. Only downside is the low RBI total, but he's an SS anyway. Neither is a "bad" choice, but Hanley probably just edges out Pujols.
...Boston papers now and then suffer a sharp flurry of arithmetic on this score; indeed, for Williams to have distributed all his hits so they did nobody else any good would constitute a feat of placement unparalleled in the annals of selfishness. -Updike