You can't go wrong with either of these guys.
Spiller is way more talented and will get more catches so that helps in a PPR. You have to take him 7 rounds earlier and there is a possibility of losing some touches to Fred Jackson (seems like everyone has forgotten about solid old Freddy).
Morris came out of nowhere last year to have an excellent season. He will not really lose many touches to anyone. You get a better value by getting him 7 rounds later. He won't catch many passes and there is always the possibility of him being a one-year-wonder.
I'd probably take the value in Morris but it's close!
Help with mine?viewtopic.php?t=534037