We had a 2007 750Li and then a 2010 and 2012 750i standard wheelbase. IMO, I like the handling and the feel better in the standard wheelbase. If you need the extra rear seat room, then the Li makes more sense. It is just me, my spouse and young child 99.99% of the time, so the Li is/was not needed!
2013 Rolls Royce Phantom Sedan,
2013 Phantom Aviator Coupe, 2013 G63 AMG