In case its not abundantly clear already, A-Rod is the most valuable fantasy player.
The only scenario i can see not taking A-Rod is in a keeper league where you are allowed to keep guys long term.....in that event, id consider taking Ramirez (but would still take A'Rod --he's got plenty of great years left in him).
i was in the exact same situation as you LAST WEEK.
i didn't know weather or not to take arod or santana.
listen, santana is going to have a monster year and he will be in discussion for the cy young when it's over... BUT A-Rod is too good to pass up.
A-rod plays EVERY DAY-- he is your workhourse and he puts up good numbers in every catagory.