Your title says 2011-12. Roloson is playing this year, but who knows about next year. Leighton isn't playing right now, because of injury, but who knows about next year. If I had to pick one, I like Leighton more only because of the upside. With Roloson, at best he will split time in NYI again, and there is a very good chance he retires from the NHL by next season.
At least with Leighton, you have to figure that at worse he will be Philly's backup, and even though Bobrovsky has been great, there is still a good chance that Leighton re-gains the starting job for Philly. And if he does that, you will have hit a home run by grabbing him instead of Roloson.
12 team, H2H, salary cap
1 pt/G or A, 2 pts/W, 1 pt/OTL, 1 pt/SO
Forward: B. Point, M. Necas, A. Debrincat, T. Zegras, J. Bratt, L. Raymond
Defense: J. Morrissey, A. DeAngelo, S. Gostisbehere, D. Doughty
Goalie: T. Demko, E. Merzlikins
Bench: M. Rossi, C. Glass, M. Maccelli, M. Dumba, K. Shattenkirk, F. Andersen
Prospects of Note: L. Stankoven, J. Lekkerimaki, D. Yurov, B. Clarke
League has been running continuously since 1997-98