Kinda comparing two 1B that are going to have almost identical value IMO. Konerko and Green are middle of the packers and sit there in the middle tier of 1B that you can grab up after the toppers get drafted.
I'd go for Green because of a little more consistency than Konerko, although not much more. In the last 3 years Konerko has hit 27, 18, 41 HR and Green has 42,19,28. Green is a more consistent RBI, R, producer, and hell, gives you about 5 SBs.
Go with Green, but don't worry about it too much. Plenty of 1B that will give you very similar value to these two.
...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