Agreed about Sefolosha extremely underrated defensively. People shouldnt sleep on their center Ibaka either, that guy is ridiculously athletic. I think he will give some fits to Bynum or Gasol, whoever he ends up guarding. The series should be alot closer than people think...especially with how much the Lakers are sucking as of late. I see the Thunder winning atleast 2 games. It might go 7 if Kobe decides to turn into Kome, which tbh is almost a guarantee since he'll be looking to outdo Durant.
Yes, Ibaka is still a rookie but already an above average defender with the potential of becoming an excellent defender once he gains some experience and reputation. Very good shotblocker already.

If Bynum isn't ready, Laker's advantage inside isn't that large - Ibaka + Collison +Krstic + Green is a solid rotation, especially considering Green can defend Odom. I wish they had signed Gortat this off-season or played DJ White more during the season.