I think you could argue for any of the top three to be your #1. Reyes had a little bit of a "down year" in 2006 and was still phenomenal, and he can almost single-handedly keep you up there in SBs. Rollins had a great year last year, 30-40, tons of runs in that lineup and he hits RBI like most corner IF. He probably won't repeat that season, but even getting close to it is ridiculously good production from your SS. Hanram is a combination of the two - more SBs than Rollins and more RBI and HR than Reyes.
I play in 5x5 HTH leagues, so consistency is a big deal. This makes it better to get stats from multiple players instead of using 1-2 guys to really carry you in HR or SBs. Because of this I think I'd put Reyes as my #3 SS.
Between Rollins and Hanram is close, but I think we still may have not seen Hanram's top potential while Rollins showed us his career year.
Interesting position to rank. Top 3 are elite and real close to each other, then there are a couple solid, safe picks in the middle (Guillen, Jeter, Tejada), and then a few riskier "what are you going to get" picks. I like 'em like this right now:
1. Hanley Ramirez 2. Jose Reyes 3. Jimmy Rollins 4. Carlos Guillen 5. Derek Jeter 6. Miguel Tejada 7. Troy Tulowitzki 8. Michael Young 9. Edgar Renteria 10. JJ Hardy
Those last 3 are hardly set in stone for me though, and could be replaced on the fly for me dependant upon need (e.g. Furcal if my team needs speed, Peralta if I need a little pop, etc).