My 2 cents:
Absolute Mortal Locks
Emmitt Smith
Marshall Faulk
LaDainian Tomlinson
The question with Faulk & Tomlinson isn't whether they should make the hall but whether or not they are among the 10 best backs in the history of the game (same for Emmitt, of course). Both men bring the rushing/receiving diversity of Thurman Thomas and both, imo are better than Thurman Thomas who recently went into the HOF. For those who doubt Tomlinson, he's nearing the end of his career (or at least his time as a dominant player) and his per game stats compare favorably to all but a handful of backs who've ever played.
Near-locks
Jerome Bettis
Curtis Martin
I think Martin has been getting a raw deal in this thread...
Both guys will probably go but Bettis is every bit the compiler Martin is. In fact, I think Martin was the better back & in fact was elite. Comparing him directly to Bettis, they played in the same era and Martin actually played 2 less seasons yet has 500 or so more rushing yards, nearly 300 more receptions and just 1 less td than Bettis.
For roughly a decade, he was a guy who finished top 10 in rushing yards & rushing tds & caught 40+ passes. That last number is key. Where Bettis was basically nonexistent in the passing game, breaking 20 receptions only 4 times & 30 only once, Martin was a true every down back clearing 40 receptions 9 times, with a high of 70.
Regardless if it were the "one back era" or anything else, his name consistently appeared pretty high on the leaderboards in every running back category. To use a baseball comparison, like some of you, I'd say he's the Eddie Murray of running backs. Murray is one of three players with 500+ homers and 3000+ hits. He is not one of the three best players ever but consistent excellence made him great. Same goes for Martin.
However Bettis is the more popular guy with the big personality...
Have a shot but still have work to do
Edgerrin James
Fred Taylor
Warrick Dunn
Jamal Lewis
Of this group, I think Edge has the best shot. Before tearing his ACL he really was one of the 3 or 4 best backs in the league, if only for a short while, and was still extremely productive for a long period after that.
Taylor has nice numbers but due to all the injuries, you always get the feeling he should have 15,000 yards & 100 TD. We'll see how playing in NE affects his status.
I don't think Dunn or Lewis really has a shot but Dunn is so well liked, it's possible & Lewis has the 2000 yard season. Shouldn't be enough on either part, but crazier things have happened.
Interesting borderline cases
Eddie George
Corey Dillon
Shaun Alexander
Tiki Barber
George has some ugly numbers but if you watched him play, he dominated games. If the Titans got anywhere near the 4th qtr with a lead, he drained the clock. This helped the Titans be a legit contender throughout his career. I think there's something to be said for being a great closer. I'd like to see him get in, but I'm not so sure it'll happen.
Dillon set a number of records while playing for a lousy Cincy team, got labeled as a malcontent, then played nice in NE. I don't think he quite did enough to get in.
Alexander might have the best shot of this group. Slam me for this if you must, but I think he was a better all-around player with a better career than Earl Campbell who is already in the HOF. Campbell's claim to fame is the first 4 years of his career when he looked like one of the best backs to ever take the field but it was essentially over after that. He would only rush for 1000 yards once more & roughly 3000 for the rest of his career. Alexander had a 5 year stretch where he finished top 3 in rushing TD, including '05 when he scored a then-NFL record 28 TD from scrimmage. The difference being he doesn't have the Paul Bunyan like feats that have been romanticized or the epic battles against the Steelers that Campbell has.
Barber is interesting because unlike most great backs, he evolved into an elite player late in his career. Over his last 5 years, he was among the best in the game.He's also well-liked. I don't think it's quite enough but again, crazier things have happened.
Umm....no
Ahman Green
Ricky Watters
Priest Holmes/Terrell Davis
I just don't see it for Green. No way, no how.
Watters is a key figure. A very nice career but I don't think he should make it in. Apparently however, he has some vocal supporters who may turn the trick. If so, everyone I've mentioned needs to get serious consideration, with the exception of Green. If not, then he & a number of others will be just on the outside, looking in.
Priest & TD will continue to get some of that injury sympathy because they put together two of the best stretches the league has ever seen. Just not enough in either case.
To early to tell
Everyone else
Clinton Portis is the man at the top of the list since, barring injury, he should go over 10,000 yards for his career this season. Personally, I think he's on track but he's not a lock, yet.
Adrian Peterson is the next guy on my list. He might take it 70 yards every time he touches it. Injury is the only thing that can keep him out of the HOF, in my opinion.
A few guys have had some nice starts to their careers but no one else has knocked my socks off.