I use the Alexis retractor system. Extra small version which can accomodate incisions from 2-5cm. It's awesome and protects the skin well when using the Ligasure or Harmonic. I use one scrub and one assist--either my partner or another scrub to do these cases. The nice thing is the assist can usually hold just 1 army navy to retract the straps and it's plenty because the alexis does the rest.
When I do an endoscopic one, I use 1 scrub and 1 assist and no retractors (except sometimes a freer)--the assist mostly holds the scope. I don't particularly see a huge benefit from the endoscopic approach over the 3cm version in terms of long term healing. The scar is much less visible sooner, but in a year, you can barely see either.