They all have their charms, but Ray is the safest bet to succeed IMO.
Smith has weak combine numbers.
Charles has a slight frame and a bad vertical leap.
Forte is solid, but he's built tall and his combine numbers don't quite compare to Rice's.
I have to call you out on this. You only spoke of Combine numbers. Nothing about on field or how they looked on tape. My question to you is Combine numbers 100% in how you rate a player? Or 50%? What is the % you put on the Combine? Of course this means you should be high on McFadden beacuse He did very good at the Combine, but I'm sure you will say He didn't. Thanks, I'll wait to see what you have to say.
The eyeball test is the most important factor. I would say Rice and Charles score the highest on that metric. I've liked Rice since the first time I watched him play. He runs low, has fluid hips, adequate burst, and good power. He looks and runs like an NFL RB should. The only issue with him is size. He has good thickness, but he's short. That keeps his weight down to a less than ideal level. It could limit his role in the NFL. He certainly has the talent to be effective though. There's no doubt in my mind about that. Charles is the most dynamic and explosive of the bunch. He makes the most "wow" type plays with his shiftiness and his burst of speed. He has a big upside. My main concern with him is a skinny frame that might not be suited for the rigors of 300 carries. If he was a little bit heavier then he would be a legit top 25 prospect. As it stands now he will probably be selected in the 25-45 range.
Forte gets the third best marks on the eyeball test. Go back and do a search and you'll see that I was hyping him before his public profile really blew up, so I'm far from a hater. He has good overall athletic ability and football skills. What I like best about him is his quick stutter step and his shiftiness. He can be effective at the next level. However, his frame is not as good as Rice's. Forte is heavier, but he's built a lot taller with skinny legs that will be injury magnets in the NFL. Also, his overall athleticism is solid but unspectacular. He is like a poor man's ADP.
Smith is an odd duck. I watched his whole bowl game this past season and came away pretty unimpressed. At times I'm intrigued by his slashing running style and his gliding stride in the open field. At other times I think he looks awkward running the football. His combine was a notch below the other players on this list. I still think he's an interesting prospect worth a shot in your rookie draft. He has the bulk to be a starter and the more you watch him run, the more you like him. But I'd probably rank him at the bottom of this quartet as of today.