The lightpeeds have a slightly larger arbor than the gurus. I use gurus and konics for all my client setups. The cheaper reel's spools seem to resist dings a bit better than the lighter models. Lightspeed will definitely dent pretty easily along the spool rims if you drop it on some river rock.
I do have a couple of Lightspeeds that i like to use on my personal rigs. One of my best battles with a HUGE trout was on a 1.5 konic. That fish was well over 10 lbs and the konic never slipped even a little.