How's the search going Roadrunner, any luck yet? I think for long term durability and high volume shooting the Combat Commander would (and should ) last longer but for daily carry and casual shooting at the range the LWT should serve you well.
If I could offer one suggestion: You might want to use mags with plastic/teflon followers such as Wilson Combat or Metalform with the LWT frame. There have been scattered reports of metal mag followers leaving dings in feedramps. Never hurts to be cautious, right?
The Wilson Combat Nylon follower mags work VERY well in the 191 types.